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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). Not suitable for the Mesa...
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Part Number: RT503

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

The Small Rectifier! The TAD EZ81 / 6CA4 is a small rectifier tube for 6.3V filaments. It is used in smaller amps, such as the Marshall 1974X or the TAD 18W Plexi Kit, Silverstone amps and in various Hammond organ amplifiers. It is a...
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Part Number: RT506

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

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

TAD Solid State Rectifier Solid State Rectifier, replaces 5U4G/GB, GZ34, 5AR4 and 5Y3 Tube Rectifiers. Perfect for getting more headroom and stability out of the amp! It is advisable to adjust the quiescent current of the power tubes....
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Part Number: RT515

GZ34/5AR4-CZ TAD PREMIUM SELECTED
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Part Number: RT521
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The Pure and Typical Sag! A faithfull reproduction of the Mullard/VALVO GZ34 with the perfection of our REDBASE™ series Pure power and the typical sag have been the distinguishing characteristics of the most popular guitar amps of guitar...
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Part Number: RT501

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

KRON Audio 274A Matched Pair - Full-wave, Thermionic High Vacuum Rectifier
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Part Number: KR-274A.2

Full-wave, Thermionic High Vacuum Rectifier 1 tube replaces and upgrades 5Z4P
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Part Number: KR-274B

KRON Audio 274A Matched Pair - Full-wave, Thermionic High Vacuum Rectifier replaces and upgrades 5Z4P
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Part Number: KR-274B.2

KRON Audio 274A Matched Pair - Full-wave, Thermionic High Vacuum Rectifier (picture might differ)
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Part Number: KR-5U4G.2

Gold Lion U77 / GZ34 Genalex full wave rectifier, duo-diode made in Russia
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Part Number: NN-GL-GZ34

MULLARD GZ34 remake made in Russia information supplied by manufacturer: The classic Mullard GZ34 has always been a favorite and is the most sought after version. It is now available with the same great performance without the high price...
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Part Number: NN-M-GZ34

Tung-Sol 5AR4 / GZ34 full wave rectifier, duo diode
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Part Number: NN-TS-5AR4

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

EH 5U4GB Electro Harmonix / Russia
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Part Number: NN504

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

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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