The first electronic amplification of sound was done with Vacuum Tubes. We have pre-amp, power and rectifier vacuum tubes among other types in New Old Stock from the golden era of American & European manufacturing as well as current production tubes from today.
Vacuum Tube - 6201 / 12AT7WA, Dual Triode, HI-MU
Miniature high-mu twin triode each section of which has an individual cathode connection. The tube is especially suited for use as a grounded-grid amplifier or as a frequency converter at frequencies below approximately 300 megacycles.
Vacuum Tube - 6J5, Triode, Medium-MU
General-purpose triode designed for use as a detector, amplifier, or oscillator. Features include a relatively high transconductance and a medium amplification factor.
Vacuum Tube - 6AQ8 / ECC85, Dual Triode
High-mu twin triode
Vacuum Tube - 12AX7WB, Sovtek
Sovtek 12AX7WB dual triode.
Vacuum Tube - 12SK7GT, Pentode, Remote Cut-Off, RF
Single ended cathode type super control pentode primarily designed for amplifier service in radio or intermediate frequency circuits. In properly designed superheterodyne circuits it may also be used as a mixer tube.
Vacuum Tube - 6146B, Chinese
Available in Singles, Matched Pairs or Matched Quads - please select from list.
Starting at $33.48
Vacuum Tube - 6AJ8 / ECH81, Triode, Heptode
Triode-heptode for use in F.M., AM/FM, A.M, and television receivers.
Vacuum Tube - 6SQ7GT, Diode, Dual Triode
Duplex-diode high-mu triode intended primarily for use as a combined detector, amplifier, and automatic-volume-control tube in radio receivers. The triode section incorporates a high amplification factor
Vacuum Tube - ECC823, JJ Electronics, Dual Triode
In the ECC823, Section 1 of the tube (pins 6, 7, and 8) is the low gain 12AU7/ECC82 spec (gain factor 17) and Section 2 (pins 1, 2, and 3) is the high gain 12AX7/ECC83 spec (gain factor 100).
Vacuum Tube - 1U4, Pentode
Miniature, filamentary, sharp-cutoff pentode intended for radio frequency or intermediate frequency amplifier use in battery-operated receivers.
Vacuum Tube - 12SA7, Heptode
Pentagrid converter designed to minimize frequency drift. They are intended for service as combined oscillators and mixers in AC, storage battery, and AC/DC operated superheterodynes.
Vacuum Tube - 5749 / 6BA6W, Pentode, Remote Cut-Off
Miniature remote-cutoff pentode intended for use as a high-gain radio frequency or intermediate-frequency amplifier. Its remote-cutoff characteristic makes it suitable for use in circuits to which it is desired to apply automatic-gain-control.
Vacuum Tube - 5879, Pentode, Sharp Cut-Off
Sharp-cutoff pentode of the 9-pin miniature type intended for use as an audio amplifier in applications requiring reduced microphonics, leakage noise, and hum.
Vacuum Tube - 6202 / 6X4WA, Rectifier, Full Wave
Miniature full-wave high-vacuum rectifier intended for use in power supplies which have low d-c output-current requirements.
Vacuum Tube - 6100 / 6C4WA, Philips ECG, Triode, Medium-MU
Philips ECG, Triode, Medium-MU
Vacuum Tube - ECC99, JJ Electronics
The JJ Electronic ECC99 is a noval based dual triode. This tube features a rugged construction and is also available with gold pins. The ECC99 is typically used as a driver for power triodes in 2A3 and 300B amplifiers but can also be used as a power tube in small amps and headphone amps. This tube can also be a functional replacement for 5687, E182CC, 6840, and 6BL7 tubes.
Starting at $15.95
Vacuum Tube - EL84M, Sovtek
Sovtek EL84M / 6BQ5WA power pentode. Made in Russia.
Starting at $20.55
Vacuum Tube - 6BJ6 / E99F, Pentode, Remote Cut-Off
Miniature, remote-cutoff pentode designed primarily for use as a high-gain radio-frequency or intermediate-frequency amplifier. Features include low grid-plate capacitance, relatively high transconductance, and low heater current.
Vacuum Tube - 7868, Electro-Harmonix
Electro-Harmonix 7868 power pentode tube with “novar” base. Made in Russia.
Starting at $29.95
Vacuum Tube - 6V6GT, Mullard Reissue
Mullard 6V6GT tube. Made in Russia. This valve is built to stand the high voltages encountered in the Fender Deluxe Reverb and other guitar amplifiers that ran the valves above the published specification. The smooth and balanced frequency response also makes it suitable for hi-fi use.
Starting at $24.95
Vacuum Tube - 19T8 / HABC80, Diode, Dual, Triode
Miniature tube containing three high-perveance diodes and a high-mu triode in the same envelope. One of the diodes has a separate cathode connection. The tube is designed for use as a combined AM and FM detector and audio-frequency amplifier.
Vacuum Tube - 6SC7, Triode, Dual, HI-MU
High-mu twin triode designed primarily for use as an AF voltage amplifier. Featuring a special shielding arrangement to reduce hum, the tube is well suited for low-level audio amplifier service.
Vacuum Tube - 5751, Tung-Sol Reissue
Tung Sol 5751 dual triode preamp tube. Made in Russia. NOS specs call the 5751 a “special 12AX7” having a high-mu amplification factor of 70.
Vacuum Tube - 35L6GT, Beam Power Amplifier
Beam pentode primarily designed for use in the audio frequency power output stage of radio receivers. Features include high power sensitivity and high efficiency at relatively low plate and screen voltages.