6v6 output transformer. If You stay ecc81 or analog - it's will be better too.

The Output Tranny is a Chineese HIFI Output Tranny intended for 2 x EL84 in Ultralinear and rated at 10W down to 30Hz. This transformer would also be a very good choice for an AC15 type amp. Bridge rectifier or Full wave CT tube- HV with two 6V6 per channel- 400ma, HV with four 6V6 per channel- 750ma. Distributor, online shop – Transfer Multisort Elektronik ••• Aug 13, 2014 · The "ballpark" estimate for (pentode) transformer impedance is just V/I. The components in this circuit will never produce 25 watts and is much more expensive than the 10 watt output transformer. The guy will be using his own preamp and effects etc, so all this thing needs is a volume control, if that. Dec 14, 2022 · Hey folks, I'm trying to source an output transformer for a pair of 6V6 in Push-Pull config. LAIDYS -10K 20W vertical output transformer, 6V6, output transformer for EL84 push-pull amplifier. Apr 10, 2024 · 0. Square case power transformer: Name: Primary: Secondary: Applications: Data: WMS-UVDH: 100V or 200V: 0～370V～400V AC0. 86PP output transformer Note tranny is 10K Raa and UL taps are 23% which suits 6V6 better than the usual 43% UL taps. Ultralinear is switchable. Feb 13, 2021 · With a couple of 6V6’s in a push pull config, I’d look for a Classictone Deluxe Reverb OT first. Info by London Power. You measure the output transformer's voltage drop and resistance to calculate the bias current. Is there something I can do to be able to use them for 6V6 tubes which are 8k? ••• Designed for push-pull tube output circuits. Output Power: 12W. 6A DCvoltage doubler160mA 150V～0～150V AC60mA 10V5A×2circuit 6. 6k for the 2x 6v6 tubes, 4k for the 2x 6L6 tubes, and 2-3k for the 4x 6L6 tube amps. 5:1 Impedance ratio 16. Aug 12, 2021 · Heavy-duty upgrade output transformer for single-ended amps using a 6V6, 6L6, EL34 or dual 6V6 power tubes is custom wound in the USA by Heyboer to stringent Allen specifications. I’ve tried Heyboer on two amp builds and Hammond on 1 SE build. It needs to be 20Watts and have 4-16ohm taps. 2: JS-6130H: 350mA Feb 12, 2015 · Hi, the JJ 6V6's data sheet show ra-a as 10k. ive even tried looking for higher primary impedance transformers but companies like Hammond dont tend to make them. Hashimoto H-20-7U (Sansui) Output Transformer 20W Single 5/7Kohms for 6V6 Oct 22, 2022 · David Hafler put out an article back in 1954 called “Ultralinear Operation of 6V6 Tubes” which is easily found on the internet, the measured “best” tapping point for a 6v6 was found to be 23%. It has primaries of 2500 ohms (6V6, EL 84), 4000 ohms (6L6 and 2A3), 7000 ohms 96F6) and 10,000 for 7189s. Brand New. Also you must be sure that the primary impedance, including transformer losses is actually 8k as you are . For anyone into that blues, blues rock, or even jazz-oriented tone, I’d rather go with 6V6. 6V6, EL84: 5W: 125B /BSE: 269AX: 6V6, EL84, 6L6 This transformer can also be used to replace blown outputs on many low & mid-priced tube hi-fis, stereos, and console radios, as well as some jukeboxes from the 40's, 50's & 60's. Free shipping. I use a 1A DC power supply and measure the voltage drop (at 1A, 1mV = 1 milliOhm). Fender Deluxe fitted with a M-1115 on one-hour soak test. I did a 6AQ5 push-pull, but it was fairly complicated - adjustable bias and balance, long-tail phase inverter. Those OPTs where smaller than the ones that this post is about, and had very limited bass response. So? It Push-pull output transformers for tube amplifiers. That's not guaranteed, of course. 100 mA. I am building a 50 watt class amp and really like the sound of 6V6 output tubes. Jun 5, 2011 · Help Guys, A friend of mine wants me to build a simple 6L6 power amp for his buddy's little guitar setup. Jan 7, 2007 · pr 6V6--8K qd 6V6--4K pr 6L6--4K qd 6L6--2K pr EL84--8K qd EL84--4K pr EL34--3. 5 The JCM800 6V6 comes in a Princeton Reverb size package but it can run 6V6, 5881, 6L6 and EL34 power tubes for 22 to 25 watts of output. The OPTIMUM impedance and/or operating point can only be determined by using tube curves or the equivalent. 5K ; Max DC Current: 160mA ; Suggest Tubes: 6AQ5, 6V6, 6L6, 807, 5881, 6550, EL84 Not a pretty part, but a good part. Note that the 6F6 essentially vanished as soon as the 6V6 arrived. The output transformer will run pretty hot with an EL34 tube Sep 28, 2020 · Now play with the proximity and orientation of each transformer until you find a practical location for each which minimizes the induction-generated field in the output transformer which is heard as a hum in the headphones. I finally got a hold of a decent Hammond output transformer 1760CP, but it has two primary impedances 5000 and 8000. 04A) would be around 7500 Ohms. May 27, 2024 · V29A06F (Clamp Mounting). Has some corrosion on the other side, and the cloth on the cloth wires is brittle, cracked some Aug 5, 2004 · the fellow changed the 6v6 and rplaced them with 6EZ5 output tubes. response 6V6, 6B4G VT52 stereo PP. EL84 will make a noticeable difference, bringing it more toward harsh tones that cut through the mix. 2v above ground); while the drop across that 15k | transformer primary is only 4 Sep 19, 2017 · First, since your push pull 6V6 should yield around 10W, a 20W transformer will give you more base (low frequency) headroom. As used in the AO-44 and AO-35 PP 6BQ5 power amps. - ref. Mercury offers Transformer Restoration Services for rare and vintage transformers that are failing or underperforming. Aug 23, 2022 · (approx 350VDC on Plates) 2) any source recommendations on decent, affordable, new or used PP 6V6 output transformers with 4/8/16 ohm taps for Bogen db10 integrated amps, the amps are in "like new" condition and worth repairing but obviously they are not worth crazy money, so the transformers would have to be priced accordingly. Second, should you change speakers or move the system to a larger room down the line, it will be a simple tube (ie: 6L6) and a resistors switch. Perhaps an 8 ohm output transformer, and just run the new vintage 47 speakers in series to get 8 ohms. 6k/4k primary/secondary impedance I do not know the exact rating on the choke but the entire amplifi Hammond's 1627-1642 series single ended tube output transformers are designed for high fidelity and chassis type X mounting. Aug 5, 2022 · 6V6's draw . Mar 5, 2014 · 1) A single pair of 6V6 into a 10K Raa (that is a bit higher than the data sheet recommended 8K but then I'm running B+ at 340V which is a bit higher than the data sheet 285V). 8,000 ohm primary to 8 or 16 ohm secondary for use with a single 6V6. but yeah, i was A real life example would be using a 6k6 primary impedance OT instead of say 8K for a pair of 6v6's. 3 volts @ 3. 6K transformer. Dec 26, 2023 · Transformer 6v 1amp transformers 50hzSingle el84 transformer end 6p1 tap 6v6 10w linear ultra zoom output 5w single ended output transformer – amp maker: guitar amp kitsLopent lepan s series 6p14(6v6 6p1) single-ended output transformer s. Find many great new & used options and get the best deals for Output Transformer 15w 8000 Ct Tube Valve DIY 6v6 Audio Fender OT PP 8k Ohm at the best online prices at eBay! Free shipping for many products! The amplifier schematic has been redrawn to reflect my preferences. Apr 1, 2018 · Power supply transformer AC power requirements with 6SN7s. However, the majority of this information is focused on push-pull configurations and finding the "optimum" point for the UL taps on the output transformer. If You stay ecc81 or analog - it's will be better too. Sep 22, 2016 · My experience: I've built 3 off 6V6 push pull Guitar Amps using these output trannies with a B+ of 350V. I build a champ AA764 amp. 13 | 12W 8K/10k small push-pull output transformer, 6P1，EL84，6v6 tube amplifier output transformer, Primary overcurrent ≥80ma 12W 8K/10k small push pull output transformer, 6P1，EL84，6v6 tube amplifier output transformer, Primary overcurrent ≥80ma|Transformers| - AliExpress Description High quality 12W ga('ec:addImpression', { 'name': 'Output transf. If you substituted 6L6 in a DR, the tone might be different, but the output isn't any louder, nor is the output any higher. Core Materials: Manufactured with grain orientated silicon steel laminations for reduced hum, low distortion, low insertion loss and stray field. Vintage iron. to 30 Khz. NEW & improved version of our 1608-1650 Series multiple secondary output transformers (re-designed secondaries for easy hook-up of secondary loads). About 8K ohms CT primary: 8 ohms secondary. Using typical operating parameters laid out in [1], the 6V6 power tube, operating Push-Pull output transformers : Type Power. You can also measure the actual plate current by shunting the output transformer with a multimeter in the DC milliamps mode and use the Tube Dissipation Using Plate Current calculator. diytube. 80 ohms So you would use a 4-ohm speaker with this transformer and a pair of 6L6 tubes in AB1 or AB2. 4. It has secondaries of 16, 8, 2 and 500 ohms. It also goes into overdrive occasionally without the typical strident highs. 45 amps, 6L6's draw . Wattage. 1 Khz) minimum. The cathode-follower output is obtained simply by connecting the transformer to the cathode of the 6V6 and tying the plate and screen of the 6V6 together to the "B plus" supply, as shown. 2K||47uF from the cathode. For the "ultimate" in Push-Pull output see our line of epoxy potted output transformers. I have used a bunch of these transformers in a number of single ended audio amplifiers using a variety of final output tubes including the 6F6, 6V6, 6L6 and 12BH7. Sec. Mar 17, 2024 · 6v6 5k5 ended output 5k 6p6 6p1 s2 cattle amplifier el84 transformer tube singlePair 7. It has an input impedance of 1k ohms and an output impedance of 12 ohms. Aug 15, 2015 · Frannie -- You can certainly use a conventional pentode type 6V6 output transformer with those tubes strapped for triode service. Toroidal Single Ended output transformer with UL tap, for tubes: EL84 , 6V6 (2x6П6C) , 6BQ5 , 6P14P (6П14П) , introduces benefits of toroidal cores to tube output. 6L6 Vacuum Tubes. Output 4, 8, 16 ohms. The input impedance is not the recommended impedance for the 6V6 tube, but it works just fine anyways. Jun 2, 2019 · Running the new speakers in parallel is ok (2 ohms), but I was thinking about using another transformer all together and fully preserve the original speakers and transformer. I wouldn't suggest Hammond unless you want a 16 Ohm output - high end suffers with 8 Ohm connection. You want to do this with the output transformer still warm to get the most accurate reading. Transformer temperature stabilised at 65°C. Heyboer Transformers, Mercury Magnetic Transformers, Jupiter Condenser, F&T Caps, Tubes, Sitches, Jacks, Wire and all kinds of Amp Parts available online from The 30W toroidal single ended output transformers are commonly used in the high end audio products. My particular project is using an identical fender amp 6. Today, we know that the proper UL tap position for minimum distortion is approximately 40% to 43% and today most commercially available output transformers use approximately this tap point. The 6V6 screen draws 3mA and the plate draws 37mA, so the total load current is 42mA. I don't have a lot of experience in Title: 6V6GT Author: AWV Subject: PW-FP-2002-11-10 Created Date: 11/10/2002 2:56:12 PM Dec 21, 2009 · This 6V6 amp was built following the push-pull (PP) EL84 / 6V6 Dynaco A-410 output transformer schematic. Apr 18, 2016 · However, the majority of this information is focused on push-pull configurations and finding the "optimum" point for the UL taps on the output transformer. 00. Bias 1 -160 volts- 60ma. Equivalent to 125A1A & 041318. Jan 26, 2021 · No. This transformer would work very well with either 6V6 or EL84 tubes. Ultra Linear tap at 40% of the primary. Was a PPP mono amp I'm wanting to convert over to PP stereo. What's that good for? A push-pull pair of 6bq5/el84's or 6v6's. Or, four 6V6 per channel- 6. Apr 9, 2024 · Lopent lepan s series 6p14(6v6 6p1) single-ended output transformer sTransformer 6v 1amp transformers 50hz S2 5. Output Transformers. Good for EL84 or 6V6. Edcor has an SE 8K primary transformer with a 23% tap for 6V6 and EL84 Ultralinear operation, I know because I paid to set it up back in the day. Great part for your special amp build that will Mar 2, 2015 · Running 6V6s at max output and high output voltages will ensure they have a short life. com These types of transformers can be used with many tube types, such as 6BQ5/EL84, 6V6-GT, 6AQ5, 6BM8/ECL82, cathode-biased 807, 6L6, KT66 and others. Flip the input and output and you get about 100V or 200V (roughly as far as my memory is). 8K is the Book value recommendation for 6V6 with +315V HV supply. C. The output transformer is a hamondP-T160 at 10W instead of the 25 watt transformer in the ordinal schematic. When the toggle switch is in the "On" position the new resistor is in parallel with R39 and the bias is correct for 6L6 and EL34 class tubes, when the switch is Off (disconnected) the new resistor is out of the circuit and bias is controlled by R39 which is correct for 6V6 type tubes. The power transformer can be used as a 120V secondary but it also has two primaries for 240V. To find the impedances, measure the coil resistance. It uses toroidal core with air gaps to improve the audio quality. Nov 9, 2010 · I have a simple question that puzzled me and after doing some research I am still not sure. MADE IN USA. 5 Ohm for 4 Ohm output. Apr 18, 2024 · The audio grounds followed a "back end to front end" sequence, first to the 100uF filter caps for the 6V6 B+ and the output transformer common leads, then to the 6V6 ground points (cathode resistor, grid resistor, and 470uF bypass cap), thence to the 12AU7 33uF B+ filter cap ground for that channel as well as the 1. Now I have a pretty beefy 6V6 PP output transformer from a ElectroHome Console Aug 12, 2016 · PP output transformers made with EI core laminations can tolerate a small amount of primary current imbalance, so a PP OPT rated for 10 times the power output of a single-ended application might yield acceptable performance. Without a load, the DC output of the power supply would be 354V, the peak output voltage for a 250V RMS power transformer secondary. 3V2A×2circuit Jan 1, 2020 · But, the data sheets I've found seem to indicate that in SE configuration at roughly 250 plate and screen volts (pentode mode), the tube is well suited to match up to a 5K PI output transformer. 4200 ohm transformer was used by Jim Kelley with 4 6V6GTA with 490V on the plate at 60W. Gillespie's DG-SE1 rebuild of the Magnavox 8600 amp), as well as some other oddball SE 5K OTs with 8 ohm secondaries. First thing I'd do is measure the turns ratio of the output transformers. The audio transformer that I found was a power transformer from a radio. There are also many different ways to achieve that "brown" sound that is so desired by guitarists, but using max output power is in my opinion not the Jun 26, 2023 · Output transformer 6v6 ended single 1001 6p1 seriesTransformer output amplifier tube ended cattle 6p1 10w 5k5 single line classic s3 transformers S3 classic line 5k5 single ended output transformer 6p1 output cattle6v 1000ma transformer 6 0 6 1amp input ac 220v output 6v transformer 1a. point for the UL taps on the output transformer. 15W Toroidal Output Transformer for EL34 6L6 6V6, 2A3 Tube Amplifier MP-15W75. Hammond is trying to tell me that their 1645A should do the job, but the primary impeadance is 5K no what you'd expect of 8K for 6V6 Push-Pull config. I used this output tranny. Prim. Consider that 12AX7 section is drawing about 2. – Axiom Power Transformer – Axiom Output Transformer (4, 8, 16 Ohm Taps) – Axiom Mini-Choke™ – Other parts necessary to make the mod – Fully illustrated step-by-step color manual, with wiring schematics and instructions – BONUS! The “6V6 Mod. Jun 10, 2023 · I tested single ended and push pull interstage transformers, single ended output transformers, and loudspeaker cables (including Monster Cable, and 18 gauge zip cord). I spec the AllenAmps. Feb 18, 2008 · about 6V6 If You stay the pair 6V6 in Paralel - but transformer with 100ma(Io) it's will be better for damping factor. This is a new SE Output Transformer with 5000/7000 ohm inputs: 4/8/16 impedance ratio for small EL84/6V6 & similar SE guitar amplifier circuits. Due to the unique interleaving of the windings BOTH secondary windings must be engaged to meet specifications (see hook-up diagrams below). Hiwatt friend David Shiers has provided the following measurements of a 1971 TG7239 output transformer: 4 Ohm Tap. The 6V6 vacuum tube can only handle a maximum power of 10 watts, while the 6L6 handles 25 watts at maximum power output. ohms. Output transformer with caps for tube amplifiers with Single Ended and Ultra Linear topology. With our attention to detail you can be assured that your restored vintage transformer will look AND sound exactly as it did. For more info please email or call us: 818-998-7791 for a quote. 6. Output stage The major factor involving the design of this single ended output stage is matching an available output tube to an available output transformer (OT) , which can provide the proper impedance matching. There are a few minor deviations from the original schematics. I also tested a balanced DSL transformer up to 6 MHz. Dec 29, 2016 · Output transformers from esdcor are on the way for the original Hammond amp, so i am bound to the final 6v6 parallel stage design. Almost all fenders transformers were 6. The Output Stage Fig 7. Enclosed (shielded), 4 slot, above chassis Type 'X' mounting. This fully shielded version of the transformer is made in Mexico to the same MPS custom design specs we've used since 2006. Filters. Apr 18, 2016 · Now in fairness, there is "some" information concerning the 6V6 in UL mode available on the internet. My main question is the grid stopper. for Fender Deluxe Reverb, Princeton Reverb', 'id': '125A1A', 'price': '79', 'list': 'Topseller', 'position': 1 }); ga Mar 7, 2008 · I doubt an extra tube will bother the transformer - but you can measure the winding resistance to get an idea of capacity. That amp had an exceptionally lovely midrange, and used the output transformers from an old Electrohome console. Nov 22, 2009 · However I've got the impression that the output transformers are relatively small and have been thinking about replacing the 6L6 with 6V6. 86PP output transformer They are 10K Raa with 20% Ultralinear taps. 6k trasnformer for 2x 6V6’s. 6k ra-a. Dec 22, 2020 · 6V6 SE; 8-10 Watts Output; Ultra-Linear (Maybe switched triode) 12AX7 preamp; Considering 6v6s case with a theoretical 8k 5W output transformer, I've worked on a This is a super rare (these days) UTC S 14 output transformer, it can be used single ended with several tubes including 6L6GT, 6V6GT, EL 84, 2A3, 7189, and several others. Used in the Fender Vibroking with 6V6 reverb driver tube and the 63 Fender Reverb Reissue amp. The output transformer ratio can be measured at 60 Hz, and impedance ratio is the square of the voltage ratio. 5 amps. Which one should I use and why would they want to put two of them if it’s made for a champ as a replacement? Jul 3, 2016 · Yes, My own design and build amp is a push pull 6V6 Guitar Amp using a 6SL7 Cathodyne (Concertina) splitter. James Output Transformers. New 2020 USA production! This transformer was originally designed for AX84 tube guitar amp projects like the P1, Hi-Octane Apr 1, 2020 · It's probably a 6V6 amp because the output transformers look too small for a 6L6 amp, plus a 9 pin rectifier has current output more suitable for a smaller power output amp like the 6V6. Projects include a 1939 vintage regenerative receiver, single ended stereo amplifiers and a stereo headphone amp. I have been reading up on Output Transformers. TME sells it: ttg el84se - Searched phrase | Electronic components. 5ma Ip (to put the cathode 1. 1645 Only Jun 30, 2022 · EL 84-6BQ5 Single Ended Output Transformer(PAIR) -Spud Amplifier | eBay If this winder can make you that transformer as a 4K, that would be a winner. Jun 13, 2023 · Single transformer end 6p1 linear el84 6v6 op4 el34 10w tap 6l6 ultra outputLopent lepan s series 6p14(6v6 6p1) single-ended output transformer s Output 20hz ended 5w 1001 6p1 transformer 6v6 cattle standard single power series6v6 single ended circuit amplifier cathode follower output audio stage power anyone avforums built has. So quite a difference. without an output transformer, so to get a comparable measurement you must take into account the losses in your output transformer, which may be as much as 2 or 3 Watts, or even more, depending on the quality of your output transformer. 75K There are a couple of books that are of great help with matching tubes to transformers: The RCA recieving tube manual which is available through Antique Electronic Supply as well as many other sources, Sep 15, 2020 · 6V6 Tube Overview. 5K. ” Takes your Valve Jr. So an output tube running at 300V and 40 mA (. 6 amp. Includes 40% screen taps for Ultra-Linear operation (if desired). For the typical circuit that would produce (about) 12 watts from push-pull pentode 6V6s, expect about 3-4 watts in triode mode. 9mA. 45A for a 6V6, 0. Secondary impedance: 4 and 8 Ω. B+ at the output transformer primaries and the driver stage B+ across the 47µf filter capacitor. This transformer is built in China to my own custom design specs & is suitable for Marshall 18W, Fender Deluxe and similar circuits. 25 watts maximum with an input signal of 12. But this is not a push-pull stage, because both tubes get the same The single ended 6V6 output was found in many domestic radios from the mid 1930s onwards and produced a good sound with adequate output power. Input impedances are 7k or 10k. Yes, you have to tie pins 1 and 8 together for the 6CA7/EL34. 5 volt drop through the DC resistance of the primary of the output transformer which was measured to be approximately 250 ohms. Was hoping to make a FDR type amp but the Classic Tone output transformers are 6. There are plenty of neat DIY projects one can build with these transformers, such as the one at www. That should work OK. Valve / Tube Application: EL84, 6V6GT and 6F6 valves / Tubes in Push-Pull mode. The 2 inch version is little taller than the original so we could use a larger transformer core, thus helping out the low frequency response as well. Output transformer impedance is generally similar and they can handle the same kinds of voltage and plate dissipation. 5k output transformer opt for headphone amplifier, plate output Lopent lepan s series 6p14(6v6 6p1) single-ended output transformer s. Mar 31, 2006 · For sale 2 Dynaco Z-565 output transformers including the power transformer P08-65, prim: 220-240V 50Hz, Sec: 620V center tap = 2x 310V (no load) + 2 x 6. Frequency response 30 Hz. Inductance @ 100Hz: 12. Dec 11, 2009 · Note that there is a 12. May 1, 2007 · Ray, the ZVN0545A is a 450V 90mA continuous 0. When selecting the output transformers could you use larger ones that ran say 6l6 or 7591's ?Any opinions would be appreciated. Maximum Power: 15W. 6V6 is a "better" tube in most ways. 6V6's, P out = 16W (clip), R L = 8 ohms, f = 1kHz, T amb =28°C. Each output was driven by a pair of 6V6gt power tubes. 20% Ultralinear taps suit 6V6 better than the more usual 43% taps. As you increase the voltage you should NOS Pair of Output Transformers for Dual 6V6 TubesLooks like good transformers for a guitar amp project or a stereo amplifier. The Legendary 20W Doberman Music Products AX84 Semi-Universal Single-Ended Output Transformer (made by Heyboer Transformers in the USA) is available again for a limited time. You should also verify that output transformers are wired correctly (Red = B+, Blue = Plate [pin 3], Blue/white = Screen [pin 4]).  Missing 2 flanges on the end bells. Units are designed to provide ample "headroom" at bass frequencies (note the weight of each transformer). imp. I don't have any additional information on these other than the schematic which is in one of the phot Apr 3, 2020 · TTG-EL84SE - Tube output UL transformer [5kOhm] EL84 / 6V6 SE - Shop Toroidy. . 4 Vdc Cathode 18. This is what came with the AES kit, and I had a few more here (P-T31, same as used in Mr. I had a Stancor A-3830 universal output transformer that was too large for mounting under the chassis so it was mounted on top. Voltage/Turns ratio 16. Depending on how you configure the gain stages in your pre-amp this OT will give you the best tone IMO. 3 volts @ 5. 5 volts peak on the Turn the amp off, unplug it and ensure the filter capacitors are discharged then measure the output transformer resistance between the output transformer center tap and both tube plates. Aug 1, 2008 · Chassis with power transformer and power supply (about 300V B+ or so), and four 6V6 output tubes (already installed). Testing was done from 10Hz to at least 100kHz. to even greater heights! Retrofits a 6V6 tube into the circuit. XE-60-5,X-5P, FX-40-5,CDR-8,CDR-5. 5K qd EL34--1. May 10, 2018 · I've pretty much settled on the Fender 5F2-A Princeton circuit using 5Y3GT (Or 6X4), 6V6 and 12AX7. Instead of Dynaco transformers, Hammond 1608A audio output transformers and a Hammond 272HX power transformer were used. The lower has zero Ia. I would like to preamp with a 6SN7, followed by a parallel 6SJ7, then go into the Hammond 2x 2 parallel 6V6 stage. Functioning set of output transformers from 1960s magnavox console amplifier. Push - Pull Audiophile - Output (1608-1650 "A" Series) PUSH - PULL "EASY HOOK-UP" "CLASSIC" TUBE TYPE - ULTRA-LINEAR OUTPUT TRANSFORMERS • NEW & Improved version of our 1608-1650 series output transformers (re-designed secondaries for easy hook- up of secondary loads) • Designed for push-pull tube output circuits. It will work with most common output tubes. Primary impedance: 3. I know it sounds crazy, but I have systemetically wired circuits wrong more times than I can count. 6k but don't like the sound of 6BM8 tubes. Let the upper tube have the turn to conduct. In addition, a comprehensive set of data concerning biasing the 6V6 in UL mode simply does not exist. Apr 4, 2016 · Let's assume this to be a push-pull output. 75:1 Impedance ratio 23. That will give you great output at about 22W. Is there a suitable alternative transformer out there or a way to compensate for this difference? Sep 25, 2017 · 6F6 suggestion dates from the time when interstage transformers were common to drive P-P grids. 10 Watt to 280 Watt Push-Pull Tube Output Transformers ; 125A-125E series Push-Pull Tube Output Transformers; 125SE Series Single Ended Tube Output Transformers; 1627-1642 Series Single Ended HiFi Output Transformer; General Replacement 125J series 8watt Push Pull Tube Output ; General Replacement 8 Watt Push-Pull 125H Apr 14, 2024 · Impedance matched Tube 6V6, 6L6GC, 6BQ5, 6F6, KT-66, VT52, 45. 7A for a 6F6 so the power transformer is going to need to supply some extra juice. Output transformer for Fender Twin Amp (models made from 58-60 Aug 26, 2016 · Oh, regarding the output transformers- they're some of the largest (physically) SE output transformers I've seen, for use with EL84 or 6V6 tubes. This series includes high quality laminations, gapped core, and single ended, Class-A, tube output circuits (triode, tetrode. Pull out that old Sansui hi-fi amp with the dead channel. One of my books has an abbreviated table which shows different tubes at differing voltages, in Push Pull, 2 tubes, 4 tubes, etc and the table gives a range of High and Low Impedance (matching to an Output Transformer). 1 The first ones are ￡34. It is suitable for amplifiers with EL34, EL84, 6L6, 6V6 tubes. 6K primary if you run it into a 4 ohm speaker. Dec 21, 2009 · The EL84 (6BQ5) / 6V6 Push-Pull tube amplifier schematic and text below is from the Dynaco Super-Fidelity Output Transformers catalog circulated around 1955. at full rated power (± 1 db max. You will get may be 0. I hope this article has helped you think through the 6v6 vs el84 power amp tube comparisons and which is right for you! Jan 16, 2014 · In this video I attempt the unenviable task of trying to explain the design and function of one the most significant, yet misunderstood, components in tube a Heyboer stayed with the original windings for their transformer and as a result has a slightly higher reflected primary impedance load of about 8K5 ohm. 4 amps. The output transformer has a primary impedance of 6600Ω, with a center tap. Double that for push-pull class A, go lower for class AB (only for push-pull). Using typical operating parameters laid out in [1], the 6V6 power tube, operating May 19, 2021 · If you want to go simple and inexpensive, and still be able to drive speakers of average efficiency I would suggest one of the many 6V6 tried and true designs using 10k UL transformers, or EL84. 3V for filament each channel Included will be 2 small PCB (old originals output boards) excluding components. You need something like 8K to 10K primary to make 6V6s work well. Jan 31, 2023 · Transformers are most important component. Specifications: Frequency response: 20Hz -20KHz. Click to learn more. (from an old SCA35) Z-565 will be excellent for PP: EL-84s, 6AQ5s or the 6V6s 59°C and climbing. Related items. Sonically, the 6V6 vacuum tube seems warm but gritty. I believe Stancore produced these and most of their units. 29 watching. Output transformers- from Hammond organ amps- part # A024158. Nov 10, 2018 · I have a pair of output transformer that are suitable for this kit "dynaco" A-410, what do you think of the changes made to the original schema? Do you think that this has an interest or that it is better to respect the original schema? Ultra-linear Push-pull 6SL7+6V6 Tube Power Amplifier Kit (10W+10W) / no tubes | eBay ••• May 23, 2019 · Anyway, the kit as well as the clones I've been building all use an output transformer with a 5K primary inductance. I checked the tube spec sheets from JJ and found that the plate impedance for 2 6V6s is 10K. Output Power: 30W output; Impedance: 2. Voltage/Turns ratio 23. pl Correct parameters, within EU. Only parallel secondaries could work properly. "Figure 3 illustrates a low power circuit (12 watts at less than 1% distortion) which is similar to that used in many of the medium priced commercial amplifiers. Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output. What voltage configuration of transformer should I be looking at getting? The schematic has 320V marked as the rectified output (perhaps I've misread the schema?). Tube Filaments- two 6V6 per channel 6. 75^2 = 564 Primary Impedance = 4(Ohm) * 564 = 2256 Ohms 8 Ohm Tap. 320V-280V-0-70V-280V-320V/0,16A AC (160mA To get an idea of the signal levels handled by the output stage, a 6V6-G tube will give an output of 4. Jul 18, 2015 · Just asking, Does anyone know what type of Output transformers were used on the Magnavox 6V6 PP stereo and something of equal quality available now? (Yes I know its a Cliché "Quality" I'm thinking about the feel/sound if you know what I mean) I'm assuming they were something like Stancore but its just a guess and what actual primary impedance C. A basic circuit was built and the output transformer used was the VVT Transformers [★] no longer trading device used for the paralleled 3A/158M. This transformer also fits many other amplifiers using 6V6, 6BQ5,EL84. the transconductance is about half so it needs more voltage swing to get the same current change. Oct 6, 2018 · I sold the last 6V6 amp I built recently, which is why I’m working on this one. First filter cap from 5U4 filament pin where the CT of the output transformer connects is 330. IMO 6K6 is on the low side for 6V6 tubes. Jan 30, 2017 · The 6v6 Output stage gets an 8k load, and will be cathode biased with a capacitor/resistor for now, and an LED array once I get the output stage set up how I like it. Product Brief. Single Ended Power Amp Output ( Orient Core Hi-B ) Model: Current Pri DC: Impedance B-P: 2A3 / 300B / 6V6 : F: 3. or pentode tubes). Designed for push-pull tube output circuits. From past experiences at 350v plate the 6v6 likes anywhere from 20~24v of bias, and around 265v screens. 30Hz~30kHz -3dB. 9 amps, and 6CA7/EL34's draw 1. Color: black. Connect the good channel to a P-P output transformer's speaker side. Comparable to swapping in a deluxe reverb output transfomer into a princeton reverb. This varying load impedance is reflected back to the primary, so the tube, and output transformer must work into a varying impedance range. Wouldn't this lead to a higher current demand and overwork the power transformer? This is assuming a fairly "typical" PT like a 330-0-330 100mA affair. Had I known the output transformer was designed to handle 20 watts, I might have built the amp with a pair of 6L6 output tubes using a larger power transformer. This type of transformer can be used with many tube types, such as pairs of 807, 6L6, KT66, EL34, push-pull parallel (quads) of 6V6's or EL84 and others. Record the resistance to as many decimal places as your meter shows. 1W (3)‎ Output cattle 6v6 transformer 6p1 5w ended 1001 20hz standard single power series Lopent lepan s series 6p14(6v6 6p1) single-ended output transformer s Single transformer end 6l6 el34 6v6 6p1 tap op4 linear el84 10w ultra output Output ended single 1001 Jun 1, 2024 · 6V6 vs. They, literally, are almost the same size as the PP transformers on Magnavox AMP175 and such. 5^2 = 272. 6v6 vs el84: Conclusion. Sep 11, 2019 · I've got a nice pair of PP output transformers for 6BM8 which is 5. Chosing A Replacement Output Transformer Now lets assume we have a set that has an output transformer with an open winding that must be replaced, and the output tube is a single 6F6. Jul 25, 2012 · First filter cap from 5U4 filament pin where the CT of the output transformer connects is 333 Vdc Plate 1st 6V6 322 Vdc Plate 2nd 6V6 322 Vdc Screen grid 302. How to match up Hammond output and power transformers. Aug 16, 2024 · For sale is this good tested vintage Thordarson T-22S70 output transformer push pull 6V6 or push pull 6L6 output transformer,about 260 DC ohm CT primary to several output taps, so about 4-6K CT primary impedance, to outputs of about 4, 8. My past experience with 6BQ5 and 6V6 tubes is that in SE config at about this same voltage level, they too work well into a 5K PI load. If you have 6L6, if you had enough heater current, you would have the same output, or if it is higher it would not be audibly difference. Brand New Tweed Deluxe push-pull output transformer replaces Fender p/n 041318, 125A1A bolt-in, no drilling required, replacement output transformer for Fender Deluxe and Deluxe Reverb blackface or silverface. $76. When finished, I could only get 25 watts out of a the four 6V6s. The price is a lot higher, but the information that's posted makes them very attractive. com TP25 power transformer and TO26 output transformer which support 6V6, 5881, 6L6 and EL34 power tubes. 7 Vdc Plate 1st 6V6 Dec 21, 2009 · The EL84 (6BQ5) / 6V6 Push-Pull tube amplifier schematic and text below is from the Dynaco Super-Fidelity Output Transformers catalog circulated around 1955. HOME » ; Output transformer » ; Push-pull output transformer; Push-pull output transformer: Name: Output (W): Impedance (Ω TF103-48 bolts into the same 2 inch (52mm) OR 2 3/8 inch (61mm) mounting hole centers as the original Champ output transformer , but it has both 4 & 8 ohm output taps. Jan 14, 2007 · The 15k resistor is almost entirely irrelevant for that tube's DC operating point, being in parallel with the transformer primary which evidently has a DC resistance a lot less than that. Here you go- a vintage paper wound output transformer for your guitar tube amp project/build/upgrade! See photo for calculations- looks like a 40:1 that will give you a 6. With Google I found a guitar thread that discussed this swap but this is a standard amp intended for stereo use. 2 6L6s is 5k so I assumed (you know what that means) that a transformer pair for a 6L6 amp would work well. Then it's transformer blocks also the signal from the upper tube, if the transformer is tight as transformers should be. Nov 5, 2022 · The DR201 Partridge Output Transformer. Unless you have really good transformers, I would think your expenditure on 4x2A3 output tubes (a minimum of $200 per quad) will not be justified. 6 = 3. If output power is the main criterion go with higher wattage output valves eg 6L6, 5881, EL34/6CA7s etc. Either replace the end bells or simply fashion a brace like I've done in the past. What about a pair of 6L6 tubes? RCA says the 6L6s have an ELR of 3,800 so: 3,800 / 998. 5H At idle, the 12AX7 triodes each draw 0. Primary Inductance. This method is more dangerous because when your meter probe So you would use an 8-ohm speaker with this transformer and a pair of 6V6 or EL84 tubes in AB1 or AB2. 78 Vdc Cathode current 70 mA Hammond 6. The 6V6 tube came about as a solution to the power problem posed by the 6L6 – a tube with similar high sound quality was desperately needed for smaller applications (car radios for example, which 6V6 tubes were originally designed for), and the Ken-Rad Tube & Lamp Corporation had the answer. Question : Would this transformer be a good choice ? A cheap build, transformer free from some renovations at work, wallwart $2 from a thrift store, power transformer under $20, 12AQ5' are cheaper than 6AQ5's. 5k single ended output transformer 6p1/6v6/6p14/el84 tube 5k5Output 20hz ended 5w 1001 6p1 transformer 6v6 cattle standard single power series. Dec 21, 2009 · This 6V6 amp was built following the push-pull (PP) EL84 / 6V6 Dynaco A-410 output transformer schematic. Dynaclone Z565 are the best bet for the price. It was designed for an EL95 single ended three Watt circuit. 6 Watt rated E-Line device with: Ciss (Input Capacitance) 70pF Coss (Output caapcitance) 10pF Crss(Reverse Transfer Capacitance) 4 pF The IRF820 is 500V 2. Bias 2 -20 volts bias- 10ma. 5A continuous device with: Ciss (Input Capacitance) 360pF Coss (Output caapcitance) 61pF Crss(Reverse Transfer Capacitance) 6 pF It is a really good "Rule of Thumb" when considering device Jan 15, 2018 · The datasheet for a 6V6 power tube (as used in a Fender Deluxe Reverb amplifier) shows that the load resistance should be 5000 to 8500Ω; with an optimum power output and distortion at 6000Ω. 5 : MS-160. Sep 14, 2014 · This is a new 15 to 25 VA Push-Pull model OT20PP Output transformer for tube guitar circuit applications (50Hz to 10KHz) using power tube pairs such as EL84 or 6V6. Freq. Looking at the dressed leads me to believe these are NOS transformers. vbqiyb adlnsh gfic godcvid bxtviqutc opcghke uoe yohd smoen tywxa