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0C3A / 0C3W Gas discharge tube / 105 volt regulator, octal base, aka VR-105, WY-3P A Gas discharge tube / voltage regulator is used as a shunt regulator to hold a voltage constant at a pre-determined level
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Part Number: S0C3

full wave rectifier tube, beautiful ST-shape bulb and black base 5U4G (=5Ц3C / 5Z3S) made at the Svetlana factory St. Petersburg. since Svetlana stopped producing glass tubes years ago these tube can be expected as NOS
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Part Number: NN502

5U4G rectifier tube made by old Svetlana factory (5Ц3C/5C3S). This is the sought after version with the special black anodes.
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Part Number: S5U4G

5U4G is glass- shell, 8-pin socket, directly heated full-wave rectifier tube,5U4G is very similar with 274B and 5Z3P, which can be replaced by each other. Heater Uf……………5V If…………… 3A Maximum Rating anode inverse peak voltage……1550V anode...
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Part Number: PS-5U4G-HIFI
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5U4G RCA NOS-NIB - the original genuine 5U4G rectifier tube made by RCA, USA.
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Part Number: S5U4G-RCA

The Big Bulb Big bulb vintage rectifier tube, used in high-end audio amplifiers but also in modern recto-type amps, such as the Mesa Boogie Double/Triple Recitifer. It can replace the 5U4GB. Its tone is smoother than that of a solid...
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Part Number: RT512

The Big Bulb Big bulb vintage rectifier tube, used in high-end audio amplifiers but also in modern recto-type amps, such as the Mesa Boogie Double/Triple Recitifer. It can replace the 5U4GB. Its tone is smoother than that of a solid...
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Part Number: RT502

various US brands, most in original boxes (NIB) Sylvania, Philips, Westinghouse and others
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Part Number: S5U4GB

The Straight One! The 5U4GB has a straight glass envelope. This type has been widely used in U.S-made guitar amps from the 1950s to the 70s. The 5U4GB has a slow start feature, which protects output tubes from high voltage peaks when you...
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Part Number: RT504

rectifier tube, beautiful ST-Shape "coke bottle" NOS / NIB Novosibirsk, built 1960-1970s can replace the 5Y3GT/WGT in many amps like the Fener CHAMP (5F1) or DELUXE (5E3) and provides a little extra power resulting in a little extra...
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Part Number: S5V4G

5Y3 (5Z4S) Higher output voltage than a 5Y3WGTB
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Part Number: NN503

5Y3 S Rectifier tube by JJ Electronics 5Y3 DOUBLE ANODE RECTIFYING TUBE
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Part Number: NN523

Our Small Bottle Rectifier! The rectifier tube for smaller vintage amps like the 5F1 Fender Tweed Champ or the Tweed Deluxe 5E3 if more headroom is required. Higher output voltage than the 5Y3WGTB (RT513). note: Unfortunately, our...
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Part Number: RT503

5Y3GT/WGT/WGTB/GTA 6087 NOS USA various brands, mostly made by Sylvania
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Part Number: S5Y3

5Y3WGTB TAD Selected THE rectifier tube for smaller vintage amps like the 5F1 Fender Tweed Champ, the Fender 57 Custom Champ or the Tweed Deluxe 5E3. Does replace any 5Y3GT. Has that typical "sag" like NOS 5Y3 by its voltage drop when...
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Part Number: RT513

5Y4G / CV1857 Duo-Diode, NOS / NIB USA varous brands, picture might differ
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Part Number: S5Y4

6C5S / 6X5GT / EZ35 rectifier tube NOS / NIB Russian rectifier tube 6C5S (6Ц5С in Russian). Made by Reflector factory, USSR. Equivalent to the 6X5GT and EZ35
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Part Number: S6C5

Rectifier tube, 7 Pin. Note: This is not equivalent to the American 6Z4/84 tube.
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Part Number: S6Z4-C

ST-Shape glass envelope various NOS brands picture might differ
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Part Number: S80

Article with traces of usage or test-installation (scratches from socket clamp), fully functional. Tested by TAD ! NOS RCA 5U4GB blackplate (!) rectifier tube, original boxed made by RCA, some pieces with different branding NOS-NIB...
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Part Number: B-S5U4GB-RCA

Article with traces of usage or installation (scratches of socket clamps), fully functional. Tested by TAD! SYLVANIA, in original boxes (NOS-NIB)
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Part Number: B-S5U4GB

EH 5U4GB Electro Harmonix / Russia
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Part Number: NN504

EZ80 (6V4 / CV1535) NOS (BEL / Philips/Mullard) full wave rectifier tube, duo diode current stock BEL (Philips/Mullard license produktion), India BEL tubes were manufactured utilising Dutch Philips/Mullard British-supplied tooling and...
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Part Number: SEZ80-BEL

EZ80 (6V4) NOS / NIB (Haltron, London)
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Part Number: SEZ80-HAL
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