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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 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

Our Small Bottle Rectifier! The rectifier tube for smaller vintage amps like the 5F1 Fender Tweed Champ or the Tweed Deluxe 5E3. This small bottle version is the closest in performance and relaiblity to the vintage 5Y3GT of the 1950s. Q:...
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Part Number: RT503

5Y3WGTB TAD Selected does replace any 5Y3GT. Has that typical "sag" like NOS 5Y3 by its voltage drop when pushed. this is causing a somewhat reduced output power and lower volume. replacement for 5Z2P Q: When does a tube become a Premium...
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Part Number: RT513

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

GZ34/5AR4-CZ TAD PREMIUM SELECTED Q: When does a tube become a Premium Selected tube? A: All tubes labeled Premium Selected have passed the following tests: - Plate Current (PC) and Amplification (TC) - Low Noise Test - Microphonic Test...
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Part Number: RT521

The Pure and Typical Sag! A faithfull reproduction of the Mullard/VALVO GZ34. Pure power and the typical sag have been the distinguishing characteristics of the most popular guitar amps of guitar heroes since the 1960s. Upgrade for 5U4GB...
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Part Number: RT501

TAD Solid State Rectifier Solid State Rectifier, replaces 5U4G/GB, GZ34, 5AR4 and 5Y3 Tube Rectifiers.
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Part Number: RT515
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