Vacuum Tubes

Special quality double triode designed for use as cascode amplifier, cathode follower, etc. in RF and AF circuits.

Power pentode for output stages of high fidelity audio-amplifiers and radio receivers

High vacuum full wave rectifying tube.

Telefunken Brand. Miniature medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers.

The all-new designed TAD 12AX7 / ECC83 Redbase is a miniature, high-mu twin triode with very good gain. These tubes are selected and recommended for guitar amps to improve overall responsiveness and dynamics. Because of its cathode-to-heater voltage-withstand capability, this tube works perfectly as a cathode follower. Best for thick, clean tones as well as for those modern preamps where a deep low end is required as well as for sounds requiring fat midrange, detailed airy top end and lots of power from the preamp. Recommended for all positions in medium gain amps or for V2+ positions in high-gain amps. For V1 in general but especially for high-gain amps or phono/audio-amps, we recommend the new 7025 / E83CC Redbase Highgrade T-7025-RB-TAD.

Miniature power pentode primarily designed for use as the video output amplifier in television receivers. Features of the tube include high transconductance, low interelectrode capacitances, and high power sensitivity.

Miniature twin double-plate triode with each section having a grid and two plates brought out to separate base pins.

Metal, sharp-cutoff pentode for use as a high-gain, audio-frequency amplifier or as a biased detector. The tube is a low-microphonic version of the 6J7 to which it is otherwise identical.

Beam power pentode designed for use in horizontal deflection circuits of color television receivers.

Beam-power pentode primarily designed for use as the horizontal-deflection amplifier in color television receivers. Control testing gives the assurance the 24LQ6 is capable of withstanding a 200 watt plate dissipation for 40 seconds

New Old Stock (N.O.S.) tube. 25CD6GB is identical to the 6CD6GA except with different heater ratings. Beam power tube, octal base.

Glass octal type used as horizontal-deflection amplifier in color television receivers.

Ruggedized heater-cathode type double diode using the 9 pin miniature construction. It is suitable for use in half or full wave rectifier applications or as a voltage doubler.

Filament type triode power amplifier. It is designed for service in the output stage of audio amplifiers where high output and low harmonic distortion is desired.

V-H-F beam power amplifier.

Duodecar type used as horizontal-deflection amplifier in television receivers.

Compactron beam-power pentode primarily designed for use as the horizontal-deflection amplifier in color television receivers. It is characterized by having a very low knee with a very high peak current of over an ampere.

Triode, Double, Western Electric brand

Beam type aligned grid power amplifier. It has a unipotential oxide-coated cathode, a hard glass nonex bulb, and a glass base with short tungsten leads. The tube has a heater designed to operate from a 6.3 volt supply.

Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is Tube Amp Doctor's first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps!

Heater-cathode twin diode designed for full-wave rectifier operation. High output current and small size make this tube especially suitable for compact amplifier designs.

The Shuguang 6146B vacuum tube is known for its robust construction and versatility. Engineered for reliable performance, these beam power tetrodes are suitable for a wide range of amplifier applications. Upgrade your setup with the dependable Shuguang 6146B and experience consistent performance in any audio environment. For more information on 6146 vacuum tubes, see our article on the 6146 Family of Vacuum Tubes.

Pentode intended for use as A.F. amplifier.

Small, sturdy, beam power amplifier tube intended for pulse modulator service in both fixed and mobile equipment.