12by7 vacuum tube. Type 12BH7 was first introduced in 1950 .
12by7 vacuum tube Brand New · GE. Vacuum Tube Country of Origin: USA. This is a lot of 15 12BY7A 12BY7 VACUUM TUBES in excellent tested new condition. 99 was - US $49. or Best Offer +$4. Here are a few common names you might find for this vacuum tube. jj-electronic. Although originally marketed as pentode tubes for use in early television receivers , they found additional uses in audio and radiotelephone equipment. Direct Replacement or Higher Quality. 88 $12. 2-day handling on all shipping orders. Was: $49. 12BV7 / 12BY7A Pentode. Only the vacuum tube is being sold. Ships from Haywood, VA. ECC83. Explore 12BY7 vacuum tube. 12BH7A tube with suffix 'A' has a controlled heater warm-up for use in a series filament circuit. If you're looking for a particular brand, please message right Other Tubes 8077=7054=12BY7. 12by7, 12by7a tube 12by7, 12by7a tube | elliott electronic supply The store will not work correctly when cookies are disabled. Tube EL 180 or Röhre EL180 ID19290, Vacuum Pentode, and shown. 13) Solder one of the jumper wires from Pin 2 to Pin L. References: Data-sheet & 1040 . 8 General Electric GE 12BY7 12BY7A 12BV7 Vacuum Tubes Valves Lot Of Eight (2k) $ 12. Listed on Jan 7, 2025 Radio Tubes 12BY7A 12BY7 12DQ7 GE NOS SA 188-5 Matched PAIR. . Brand New. Listed on Mar 10, 2025 A Brand New JAN (Joint Army Navy) 6AG7 Vacuum Tube Quick Links: Introduction 6CL6, and 12BY7, all with a mutual conductance of 11,000 micromhos. $14. Sort of tube you might see in a compressor or a bass General Electric GE Original 12BY7A Vacuum Tube 9-pin Vintage Miniature type Miniature Power Pentode RF Amplifier PRE-OWNED Information and specifications page Jun 8, 2008 · What I'm probably going to use first off after some thought is a 6AH6 in full pentode mode driving a source follower, which in turn will drive an enhanced triode (screen drive) mode sweep tube. Frank's Electron Tube Pages Data Sheets, Type Lists, Number Systems, Tube Bases, Substitutions, and more. Please report any errors. Both the 12BY7 (1951) and the slightly improved 12BY7A (1954/1955) are all-glass types with a B9A (Noval) miniature 9-pin base and share the EIA 9BF pinout with a number of other miniature pentode tubes of the era. If you're looking for a particular brand, p Title: 12BY7A Author: RCA Subject: FP-2012-01-14 Created Date: 1/14/2012 1:43:35 PM 12BY7: Electro-Harmonix is your go-to source for odd-ball and hard-to-find tubes. Cart 0 Product Products On a frame grid tube, the grid wire is wound on a rigid frame. Vintage Vacuum Tubes. As one of the leading tube stores, we offer a vast selection of radio vacuum tubes and amplifier vacuum tubes for sale. Wires from RCA to driver are therefore shortest. A very different application though. Jan 7, 2025 · This Stereos & Home Audio item is sold by Lowtechelec. $23. For high-frequency radio use, however, the Triode has the serious limitation of its Miller Capacitance which limits the upper frequency at which a Triode can be used. 12BH7 Tube is capable of driving plenty of current with low distortion. 7% , Location: Tonopah, Arizona, US , Ships to: WORLDWIDE, Item: 325590446572 Find many great new & used options and get the best deals for RCA Tube 7054 ( 12BY7 ) NOS at the best online prices at eBay! Free shipping for many products! 7V7-7C5 TO 12BY7 Vacuum Tube Socket Adapter - NEW - $4. E. We will combine shipping. The 12BY7 is used in the popular Miniature power pentode designed primarily for use as the video output amplifier in television receivers. Get it Apr 2 - 4. CBS 12BY7 Vacuum Tube 12BY7A 12BV7 EL180 Ham Amateur Radios Vintage BW TVs. au; Search. 1~) Install either a 12BY7 or 125117 vacuum tube and tube shield in socket XRT ~l2, The 12AX7 tube also comes in a few different model names. Most appear to be RCA and GE and t are some other brands. www. Type 12BH7 was first introduced in 1950 . This is because some have been tested for noise levels. Please check the OddMix Vacuum Tubes listing as a few of some of the types are usually available. Frame grid tube has very low microphony and tight tolerance. Used – Good Apr 4, 2009 · I think SY is pointing out that the Hammond uses a tube rectifier, so using a solid state rectifier plus a 250v transformer will put you in the same ball park for 350v with a 6x4. Purchase 12BY7 / 12DQ7 / 12BV7 vacuum tubes online, in stock and ready to ship! Replaces 12BY7, 12BV7, and 12DQ7 tube types. OddMix substitute tubes comprise a wide variety of rare, vintage, exotic, original and Title: 12AX7 Author: Mullard Subject: FP-2012-06-10 Created Date: 6/10/2012 8:04:10 PM Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube. Title: 12BH7A Author: General Electric Subject: JA-FP-2001-01-23 Created Date: 1/23/2001 10:41:14 PM Made in the United States, this 12BY7 is sure to provide your project with years of great service. Listed on Mar 29, 2025 K4KYV 2013-08-13; RE: Convert Tube Receivers to Solid State; I wouldn't recommend a wholesale conversion of the entire receiver. Many hidden construction features were included to achieve this such as high-reliability heaters and gold grids. Even more remarkable, when we have lots of used tubes come in, the rejection rate of used Mullard 12AX7’s is much lower than for any other manufacturer. 95 Subscribe JAN-GE 6072A Black-plate - General Electric is known for producing many of the best tubes ever made in the USA. See also 1955 adverts. And others are made in different countries. 6ES8 - A variable mu version of 6DJ8/6922/ECC88, no good for HiFi, might be worth a spin in a guitar preamp. Opens in a new window or tab. If you're looking for a particular brand, please message right Apr 11, 2022 · New 9-pin ceramic tube. 12AU7 (mu: 17): Released – October, 1946. 12BY7A 12BV7 Vacuum Tubes $14. 95 Subscribe Tube 12BY7 or Röhre 12BY7 ID5331, Beam Power Tube, Noval, 9 pin miniature (USA pico-9) B9A and shown. Nostalgia Air Vintage Radio References Aug 9, 2010 · To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Be careful not to disturb existing wiring. This makes it ideal as a driver for power tubes in modern tube audio amplifiers. Title: 12AY7 Author: RCA Subject: FP-2001-09-29 Created Date: 9/29/2001 10:57:15 PM Going for higher driver gain isn’t desirable with this type of circuit if one wants to keep the noise floor at –75dB down with 20dB NFB(Vin then becomes 0. Selection of Radio Vacuum Tubes and Amplifier Vacuum Tubes for Sale. Reviews . All times are UTC [ DST] (21Hz if you make the cathode bypass on the 12BY7 1000uF from 220uF - my The 12BV7, 12BY7, 12BY7A, and equivalents were a class of medium-low gain, pentode vacuum tube amplifiers using the Noval socket configuration. Tested: 98%. 16 Find many great new & used options and get the best deals for Vintage SYLVANIA 12BY7A Vacuum Tube NOS Tested at 100 at the best online prices at eBay! Free shipping for many products! 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 > 10(1-500) 12A(501 Related Post: Soviet/Russian Tubes Equivalents. They have a B9A 9-pin base, black or grey plate, and top D or halo getter. Dec 27, 2024 · This Bulbs & Tubes item is sold by Lowtechelec. FOR SALE! 204473116445 At Fuzz Audio, we test lots and lots of tubes, and with Mullard valves it is not uncommon for every tube in a batch to test nearly identical to one another (with balanced triodes as well). 5 W power pentode vacuum tube. Applicable tube: 6DJ8 EL84 6922 6BM8 6BQ5/EL84 6CG7/6FQ7 6DJ8/ECC88 6DL4 6EU7 6AU8 12AT7/ECC81 12AU7/ECC82 12AX7/ECC83 12AY7 12AZ7 12BH7 12BY7 5751 5814 6189 7119/ECC EFCC 7199 E80, etc. A worthwhile improvement might be to convert the high frequency oscillator and BFO to a FET and let them run all the time with a small auxiliary power supply, eliminating the warm-up drift. World Tube Company. 49 (44% price drop) Hammond 12BY7. 95, now $8. All prices are per tube. The Stancor A-3894 125-watt modulation transformer was about $36 in a catalog The tubes in the replacement table allows to select identical pin-for-pin replacement tubes and improved characteristic and foreign made substitute types. Listed on Mar 7, 2025 Sep 9, 2014 · Genalex Gold Lion 12AX7 ECC83/B759 Gold Pins Vacuum Tube - Matched Pair. On the other hand, the 12by7 is indeed designed for use as a class A amplifier like the 12ax7 but DO NOT plug that sylvania 12by7 vacuum tube nos nib black plates valvola valve single old school Unsold $14. The part of the schematic you are using wants 280v, which is entirely feasible with 1n4007 (or UF4007) diodes and a 250v transformer with the appropriate filter caps Tube Substitutions for: 12BY7A Pentode Video Amplifier. The 6AH6 has almost as much transconductance as the 6CL6 and 12BY7 and doesn't require as much plate current to get the benefit of its goodness. This tube has plates that are 25% to 30% larger than the Electro-Harmonix and have unequaled build quality. These Sylvania vacuum tubes are known for a smooth, yet detailed sound. Mar 23, 2025 · Find many great new & used options and get the best deals for Lot of Two General Electric 12BY7 Vacuum Tubes - Tested Good on TV-7D/U Tester at the best online prices at eBay! Free shipping for many products! Mar 7, 2025 · This Bulbs & Tubes item is sold by LeedsRadio. 00. 99 each. 4 Assorted 12BY7 12BY7A Vacuum Tubes Valves Lot Of Four (2k) $ 10. Welcome @ Frank's; electron Tube Data sheets The manuals in this archive are available to all who enjoy working on and restoring old tube type amateur radio equipment and short wave receivers. Tubes are tested and came from repairman's stock. They are not a frame grid ECC803, however. In most cases the driver tube is some small unexciting 6N1P or 12AX7. That tube was designed to be used for a vertical deflection amplifier for a TV. Guitar amplifier parts, guitar amplifier tubes and guitar amp tubes 12ax7, 6v6gt, EL84 KCA NOS Tubes. Guitar amplifier parts, guitar amplifier tubes and guitar amp tubes 12ax7, 6v6gt, EL84 Single Vintage NOS NIB Raytheon 12BY7A Vacuum Tube Japan Bitmatic Tested. 8077=7054=12BY7. Unbranded 12BY7 Vacuum Tubes Pair 12BY7/A EL180 Ham Amateur Transmitters Radios. The Handbook modulator article discusses the range of output power from four 1625 tubes in Class AB 1 at various supply voltages, 140 watts of audio being available with a 750 volt supply. 6AU5 - power output pentode - often used these days to drive big tubes like an 845 in Single End for HiFi use. ) Solder the remaining jumper wire from Pin 7 to Pin ~ on socket XRT S12. They were so successful Sylvania rated them for 10,000 hours. Home; EL180 = 12BY7A = 12BY7: Similar Tubes: Normally replaceable-slightly The Gold Brand line from Sylvania was their ultra-durable vacuum tubes. FOR SALE: Krell LAT-2 Speakers W Stands. com. References: Data-sheet, 1040 & Henning Hertz. Free returns 12BH7 vacuum tube is a medium mu dual triode. on socket XRT ~l2. New and Used Vacuum Tubes Love is Resonance! New tubes added: components and tubes including the 1625s along with their ceramic tube sockets. Was: $19. The 12AX7 actually has two vacuum tubes in one. 99 $ 129. Buy It Now Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube. 0482 176 767; neil@thevalvestore. 99 25% off. F. 00 shipping. Type 12BY7A was first introduced in 1955. $129. Tung-Sol 12AX7 New Production Preamp Vacuum Tube. Price C$4. 50. Originally $14. 65 Buy It Now , $5. Pre-Owned. Title: 12AU7 Author: Tung-Sol Subject: FP-2004-07-25 Created Date: 7/25/2004 11:04:08 AM Nov 29, 2009 · Homepage for Arizona Tube Supply - Vacuum tubes for sale Arizona Tube Supply 12BY7: Driver Tube : various brands available - inquire : 807: Output Tube : Title: 12BH7 Author: Tung-Sol Subject: JA-FP-2005-11-20 Created Date: 11/20/2005 12:07:00 PM Find many great new & used options and get the best deals for Vintage NOS RCA 12BY7A Vacuum Tube Tubes USA Tested Tub19117 at the best online prices at eBay! Free shipping for many products! Find many great new & used options and get the best deals for Vintage Raytheon 12BY7A 12by7 Vacuum Tube USA at the best online prices at eBay! Free shipping for many products! 12bv7, 12by7, 12dq7, 7733, el180 Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Tubes Unlimited is Your #1 ONLINE Source for NOS Vacuum Tubes Last update of this mirror site: 2025-01-17 Electron tube Type: Brand: System: Data sheet. Type Substitutes Base Diagram; 12BY7A: 12DQ7, 12GN7, 12BY7* KCA NOS Tubes. Only 3 left in stock - order soon. $34. Yes the 12bh7 is direct pin out with the 12ax7. Close. Add to Favorites 4 Vintage Vacuum Tubes, Radio Electron Tubes, Audio Amp or Amplifier Tubes 6AG5 The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 60 mm tall. Tube prefix selection Nov 20, 2010 · 12BY7 - Video Pentode - used as an output tube driver in some HiFi Amps. Each 5 days ago · By having the driver tube at the back of the amp (when RCA are mounted rear-ward, more often than not) it would make sense to have the driver tube back there. 46 + C$37. If you have ever opened up your amplifier expecting to find a 12AX7 but found some ECC83s instead, fear not! Single Vintage NOS NIB Raytheon 12BY7A Vacuum Tube Japan Bitmatic Tested. See reviews. Type Substitutes Base Diagram; 12BY7A: 12DQ7, 12GN7, 12BY7* Electron tube type Brand Country System PDF VP; Electron tube type Brand Country System PDF VP; 12BY7A RCA (HB3) pentode: 167,243byte: 12BY7A General Electric Co, Ltd: pentode: 439,122byte: 12BY7A Tung-Sol: pentode: 279,102byte: 12BY7A RCA (RC30) pentode: 180,551byte Model Type / Number: 12BY7 Tube Brand: Philco Purchase includes the pictured tube (s) We test on a Jackson 648 Tube Tester and these tubes tested: 90% Each tube is allowed to warm up for 20-30 seconds while we check for glow. Our vacuum tubes are built to deliver outstanding performance, reliability, and sound quality. with 2 Krell Carbon Fiber Stands Feb 13, 2024 · Vacuum tube lot of (6) 12BY7. Catalog Sections EFFECTS PEDALS, AMPS 6 days ago · Board index » DIY Forums » Vacuum Tubes / Thermionic Valves. $28. Listed on Dec 27, 2024 Feb 10, 2024 · Vacuum tube lot of (5) 12BY7. Listed as used but the tube in the Westinghouse box may be NOS (new old stock). Not usually a problem at audio frequencies, but at RF it was a show-stopper! 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 > 10(1-500) 12A(501 Tube tests good as shown in the photo. This listing is for a Pair (2) of 12BY7A Beam Power 12BY7 vacuum tubes in the standard tube shape. JJ 6V6S Power Vacuum Tube. Ft-101 Series 2- 6js6c Toshiba+12by7a Tested Matched. Modern tube manufacturers have resurrected the ECC803 type code as premium versions of 12AX7. According to my Hickok 6000 tube tester 4500 Micromhos is a n Mar 29, 2025 · This Stereos & Home Audio item is sold by Lowtechelec. $8. This tube was purchased from a Ham radio enthusiast estate. Radio tubes are valves. Add to Favorites matched pair Tektronix (RCA) 12BY7A vacuum tubes - original Jun 25, 2024 · The 12BY7A (European: EL180) (P/N 154-047,154-0047-00) is a miniature 6. Like the 12BY7, it features high transconductance, high power sensitivity, and low interelectrode capacitances. Mar 10, 2025 · This Stereos & Home Audio item is sold by Lowtechelec. 99. 12AX7 is a Dual Triode Tube. Suitable for 12AX7, 12AT7, 12AU7, ECC83, ECC82, E88CC 6922 6p1 6p14 6n1 6n11 etc. 2 Silver 1 Black Total of 3 LAT-2s. Used – Good. Bill Beech, NJ7P -- Tube Data Searchable Database. From our review: "Sonically I find these tubes to have a lot of punch. double tRiode Base: NOVAL uf = 6,3 or 12,6 V if = 600 or 300 mA Typical Characteristics: ua = 250 V ug = -10,5 V ia = 11,5 mA S = 3,1 mA/V Items in Odd Ball Tubes Sort Item A-Z Item Z-A Item Name A-Z Item Name Z-A Price Low to Hi Price Hi to Low Items per page 40 80 120 OA3 Sovtek Vacuum Tube May 29, 2013 · The evolution of the vacuum tube amplifier started with the Triode, with which we are very familiar. ECC82, ECC802, E80CC 12BY7A NOS Zaltron vintage amplifier radio audio vacuum tube tested 12BY7 12BV7. are simply the best. 95. lLi. Recent Classifieds. 12BH7 was designed as a driver in TV sets. 88 Shipping , 30-Day Returns, eBay Money Back Guarantee Seller: mercedesman6572 ️ (17,669) 99. They are hard to find and when they are available, they are expensive. Audio tubes for guitar amplifiers and audiophile equipment. Labels in stock include RCA, GE, Sylvania, CBS, Matsushita. More 12) Locate the ballast tube socket XRT ~l2. Mullard Vintage Tubes The manuals in this archive are available to all who enjoy working on and restoring old tube type amateur radio equipment and short wave receivers. 12BY7 TUBE Equivalents 12BY7A, 12BV7, 12DQ7, 7733, 8448. Rca 12by7a 12dq7 12by7 Vacuum Tube Usa Nos Nib Black Plate White Label D. Listed on Dec 4, 2024 Order Today 12by7, 12by7a tube - 12by7, 12by7a tube with no minimum order. 00 In Stock! NOS Tubes Precision Tested and Ready to Ship! 8077=7054=12BY7 RF Pentode USA brands only NOS $19. Classified: FOR TRADE - 12BY7 Vacuum Tubes. Tube 12BV7 or Röhre 12BV7 ID5327, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and shown. Dec 4, 2024 · This Stereos & Home Audio item is sold by Lowtechelec. The reverse will not necessarily be a correct replacement. Tubes came from repairman's stock and are tested. com 12BH7-A R. 7V) Going for a 12BY7 (a brilliant tube) would only enhance the 1st stage pentode noise (10dB worse) and require even more NFB to counteract. This listing is for a Matched (10% in GM) Pair (2) of 12BY7A Beam Power 12BY7 vacuum tubes in the standard tube shape. The 5751 and 6550 tubes from G. This is the exact tube in the tester, not another tube. Nostalgia Air Vintage Radio References The thin glass tube envelope is 19 mm in diameter and, excluding the B9A base pins, is 68 mm tall. We now have the reissue CV4004 (ECC83) version in stock. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. Ships from Bronx, NY. Jan 20, 2008 · I pulled out the old RCA tube manual for the first time in years. Sign in . NOTE: We will respond to offers and ship orders on Tues EL180 12BY7A 12BY7 NOS TUBES - VALVES - IN STOCK - FAST SHIPPING - AUSTRALIA WIDE. It has short plates and gold pins. Original Genalex Gold Lion vacuum tubes are considered among the best 12AX7 preamp tube types ever made. 99. This 6072A tube continues the tradition. $29.
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