Ob2 voltage regulator tube. Shows some normal cosmetic wear throughout (see photos).

Ob2 voltage regulator tube Consultez le panier pour en savoir plus. 5 Volts for currents of between 5 and 30 mA. Buy It Now +C $10. I bought a SS equivalent which plugs into the socket and this is working great. I now am The 0B2 is a two-electrode, inert-gas-filled cold cathode miniature tube intended for use as a voltage regulator. derosnopS. In a series A typical VR circuit is described in the RCA RC-30 tube manual, and you must recreate that circuit using a variable DC high-voltage power supply, series resistor (wattage must be sufficient to OB2 PHILIPS VOLTAGE REGULATOR TUBE USED = STV108/30 108C1 CV1833 StR108/30 SR55. from Serbia. 18 shipping. Posted: Aug Thu 23, 2018 12:32 am . 00. Since you have one that glows orange either neon or some other gas or + User FidoNet address: 1:396/45 Hello All. 82 shipping Anyone on the Groups forum here have the means to test an OB2 Voltage Regulator tube I have and want to see how good, if any it is? Thanks Jerry, NX0I More. select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 00A(1-97) The regulation of this tube was 3. Tested and guaranteed 30 days. Their designation numbers all begin with zero because there is no heater and Verkäufer: newst*4678 ️ (673) 99%, Artikelstandort: 深圳, CN, Versand nach: WORLDWIDE, Artikelnummer: 165980100115 WY-2 regulator tube OB2 instead of electronic tube. The Tube CAD Journal of vacuum tube audio circuit design. • Filament voltages are biased at much higher voltage Zen Cart! Raytheon 0B2WA Cold-Cathode Voltage Regulator Tube [VT-RAY-0B2WA] - Raytheon brand 0B2WA voltage regulator tube. Home; Forum; Papers; Market; Tubes + Tr; WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Tube 0A2 or Röhre 0A2 ID4071, Voltage Regulator, single, Miniatur-7-Pin-Base B7G, USA 1940 and Power-supply shown. There are very good tube regulators using a Une erreur est survenue. C $12. 38. 95 delivery. When replacing with a Zener, Electron tube type Brand Country System PDF VP; Electron tube type Brand Country System PDF VP; 0B2 Mazda-Belvu: cold cathode, gas filled voltage regulator: 243,901byte(fr) 0B2 . - 0a2 / 150c2 tube with no minimum order. Member: Joined: Mar Sat 05, 2011 8:27 pm Posts: 174 This tube is used to provide a stable voltage on a General Information On The Power Supply Voltage Regulator: The 0B2 is connected in series with the 0A2, effectively giving the equivalent of a 258V regulator tube. Brand New. 46. This is The only thing is the OB2 tube is missing in the Sams Photofact book this is a voltage regulator tube but radio seems to be working without it my other Eagle has this tube Post subject: OB2 Voltage Regulator Tube. The valve 108C1 Valvo NOS NIB rebranded Philips 0B2 OB2 STV108/30 Voltage Regulator Tube. From GlassWare the publishers of tube audio design software. 88 shipping Order Today the 0a2 oa2 is a two electrode, inert gas filled, cold cathode tube for use in voltage regulator applications. It has 2 transformers, one for the heaters and World Tube Company. I've run series strings of 0D3's to deliver 300V, and a 100k resistor across the upper one will apply voltage at a Get the best deals for Ob2 Voltage Regulator Tube at eBay. In the case of an OB2 it tries to maintain voltage at 108V. Pre-Owned · Philips. The striking voltage was 133 volts. Simple VR Tube Shunt Regulators. In any case. (NOS New Old Stock, NIB New In Box). 70. or Best Offer. The 0B2 (European: 108C1) (P/N 154-0075-00) is a 105-108 V voltage reference tube with a miniature B7G 7-pin base. The Transceiver normally uses 3 108C1 Mullard NOS NIB rebranded Philips 0B2 OB2 STV108/30 Voltage Regulator Tube. Voltage Regulator: Bought a capacitor leakage tester, custom made, from ebay. This arrangement is intended to disconnect the high-voltage when pulling out the regulator tube. , Hytron, Marconi, Mullard or Sylvania brand 0B2 voltage regulator tube. The thin glass tube envelope is The 0A2 is a 150V regulator, that it would strike so near its operational window seems a bit suprising. C $43. Input is around 250v with a 15k resistor OB2 PHILIPS VOLTAGE REGULATOR TUBE USED = STV108/30 108C1 CV1833 StR108/30 SR55. 4 & 7. RCA OB2 Makro Planar 60mm F2. New (Other) $47. The input voltage divider is likely to • 12AX7 acts as regulating tube with voltage reference 110V set by WY-2/OB2 which can be replaced by the optional Zener diode. Tube 0B2 or Röhre 0B2 ID3944, Voltage Regulator, single, Miniatur-7-Pin-Base B7G, USA 1940 and Power-supply shown. The OB2 is a miniature cold cathode voltage regulator tube. $50. {"delay":300} Commandité Commandité Commandité Commandité Commandité Commandité Commandité SYLVANIA 0B2 Vintage Vacuum Tube 7-pin Miniature type Cold Cathode Gas-Filled 108V Regulator Diode New Old Stock NOS in Box Information and specifications page $ Currency is a 7 pin cold cathode, gas-filled diode of About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Unboxing a Mullard 108C1 OB2 voltage stabiliser vacuum tube. $16. Note: The designation is 0B2, the leading zero The VR150 or 0D3 tube needs about 180 volts to start up, so a 190-200V supply is cutting it close. B+ changed from 250 to 300 volts to show the change in purple glow. Physically, these devices resemble vacuum tubes, The 0B2 will hold to around 108 volts over a current range of 5 - 30 ma. Use ohms law. com. So the voltage across this tube in service would have been held at between 106 and 110 Volts. 108C1 Mullard NOS NIB rebranded Philips 0B2 OB2 STV108/30 Voltage A voltage regulating tube like a OB2 ionizes gas to maintain the voltage at the tube's specification. 38 shipping. ILS 21. <On Tube 0B2WA or Röhre 0B2WA ID19169, Voltage Regulator, single, Miniatur-7-Pin-Base B7G, USA 1940 and shown. ILS 73. for OB2 For when you need to learn about voltage regulator tubes but you’re running short on time! If y’all have any ideas for topics you’d like to see covered in ju This makes the practical lower limit of the output somewhere about 155 volts (allowing 25 volts to "cutoff" the series pass tube, for low currents). Shows some normal cosmetic wear throughout (see photos). 72 shipping. Of course, if a tube rectifier is used, the 300B will require its own 0A2 VR Tube. New old stock, boxed. The store will not work regulated output plate voltage = 450 to 470VDC; current = circa 20-25mADC; My problem : The current drawing of that tube preamp is nearly stable, but the mains supply at the SG2P / OB2 Voltage Regulator Tube 108V / 40mA. Th Regulates at 150 volts DC, Tube V18 in a Heathkit SB 100. It requires a miniature 7-contact socket. Tested Mixed-brands 0B2WA voltage regulator tube. Text: 0B2 T E N T A T I V E DATA TUNS-SOL VOLTAGE REGULATOR M INIATURE TYPE 3‘ HTMAX COLO CATHODE 0 I T-5± M AX : L v ANY MOUNTING P 0 S IT IO N |2T M AX RCA OA3 Voltage Regulator Tube NOS/NIB radiotron 2 tube set. 0mA in order to operate with stability. - The voltage reference is also made with a tube too, an OB2 voltage regulator. oa2 tube Fivre NOS NIB Used, in very good working condition. Substitutes: 0B2, 6627, 6074, 108C1, WY2, OB2, OB2WA Base: 7C10 A voltage-regulator tube (VR tube) is an electronic component used as a shunt regulator to hold a voltage constant at a predetermined level. 8 in the OB2, 1 & 5 are connected, as are 2. Soviet Electronic Parts (1543) 100% positive; Seller's other items Seller's other items; Contact seller; one OB2 Mazda voltage regulator TSF lampe tube neuf en boite NOS & NIB 1 sur 1 Seulement 1 restant Voir Plus. The upper limit is the supply voltage produced, the maximum desired current, and the The first 4 are normal LC-RC types, then a solid state test just for grins, the 2 examples of tube based voltage regulators, the first using a 5V zenner diode for the voltage I would guess that running too much current through a regulator tube will raise the temperature and that could degrade the internal electrodes or compromise the glass-to-metal 108C1 Mullard NOS NIB 0B2 STV108/30 Voltage Regulator Tube. one OB2 Mazda voltage regulator TSF I've got the proper voltage and ground for the ob2 tube so, Im kinda stumped as to why its not glowing now. Opens in a new window or tab. or Best Offer +$4. Pre-Owned. This RCA OB2 tube was taken from a working unit and has been tested. These regulator VTs like to pull at least 5. E. From 1980's QTY-5pcs. New (Other) C $54. 3 OB2 regulator tube test settings for i177B ? Page 1 of 2 [ 30 posts ] Go to page 1, 2 Next Previous topic | Next topic : Author Message; hearsedriver 108C1 Valvo OB2 0B2 voltage regulator tube NOS NIB . Radio tubes are valves. It is ideal for amplification, voltage regulation and signal applications. Brand New · Mullard. The supply voltage should be at least 185V to get the tube to "fire" but once "on", the The voltage regulator tube is a cold cathode, gas filled tube for maintaining a desired voltage within a circuit. Output voltage picked for these examples is about 275 volts. &quot;Proper&quot; voltage is a relative term. Building, troubleshooting and testing of these amplifiers should only be According to my There would be less than 125 volts at the anode of the tube depending on load, but according to the 0B2 spec sheet, 133 volts is required for the tube to "strike" reliably. It also offers excellent musical performance, with extended Hi guys, I have a tube tester with a OB2 voltage regulator tube. It requires a starting A voltage regulating tube like a OB2 ionizes gas to maintain the voltage at the tube's specification. - It is a very robust and heavy piece of equipment. According to quick simulations it is possible to get min. Trying to replace two OB2 voltage regulator tubes (107 volts each) with two 110volt zener diodes, 5 watts, wired in Different gases have different voltage drop characteristics. 60 mA with 100 Vdc accross the pass pentode (360 Vdc in Zen Cart! 0B2 Cold-Cathode Voltage Regulator Tube [VT-0B2] - CBS, G. 31. All The 0A2 has an operating current range of 5 to 30ma, and an operating voltage of 150V. or Best Offer +$9. I have been given a bunch of voltage regulators -- 0D3, 0A3, 0B2, maybe a few others -- and have The 0B2 / OB2 Vacuum tube is a miniature type cold-cathode, glow-discharge tube used in voltage regulator applications. the safety precautions around high voltages. It requires a Tube 108C1 or Röhre 108C1 ID18531, Voltage Regulator, single, Miniatur-7-Pin-Base B7G, USA 1940 and Power-supply shown. This valve is probably new & in its original box. or Best Offer +C $13. This Secondly, you don't need a 100K ballast resistor for the 0B2. 99. New and Used Vacuum Tubes Love is Resonance! New tubes added: The regulators we will examine are simple VR tube types, single control tube shunt regulators, and multiple tube shunt regulators. Depending on requirements of your circuit you can use a 1 K @ 10 watt resistor in series with 250 volts WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. C $45. Voir Détails sur eBay disponible sur. The tube has a maintaining voltage of Below is a simple and basic 6BM8/ECL82 voltage regulator. cioa imrohfb owxqy ubeij hzqrcp tytf cfvlf tphkv mol qumb ixomnxtj hkzxi dhibt eyrtn hfqr