# Vacuum Tubes

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 Tubes

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 - 12DT8, Triode, Dual
General-purpose high-mu twin triode of the 9-pin miniature type intended for use as an rf amplifier and as a combined oscillator-mixer in fm tuners. This tube is also useful in a wide variety of applications in radio and television receivers.
$9.90 Vacuum Tube - 12DW7, Electro-Harmonix Electro-Harmonix 12DW7 dual triode preamp tube. Made in Russia. 12DW7 combines one triode of 12AX7 and one triode of 12AU7 in a dual triode package. System 1 (pins 6, 7, 8) is the high-mu 12AX7 triode and system 2 (pins 1, 2, 3) is the medium-mu 12AU7 triode.$24.95
Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode
In the 12DW7/ECC832, Section 1 of the tube (pins 6, 7, and 8) is the high gain 12AX7/ECC83 spec (gain factor 100) and Section 2 (pins 1, 2, and 3) is the low gain 12AU7/ECC82 spec (gain factor 17).
Starting at $12.95 Vacuum Tube - 12DW7 / 7247, Dual Triode, GE Dissimilar double triode in the 9-pin miniature construction. It is especially suitable for applications requiring a high gain voltage amplifier and a cathodyne type phase-inverter.$24.95
Vacuum Tube - 12FQ8, Triode, Dual
Miniature twin double-plate triode with each section having a grid and two plates brought out to separate base pins.
$12.90 Vacuum Tube - 12SL7GT, Triode, Dual, HI-MU High-mu twin triode designed for use in resistance-coupled circuits as a voltage amplifier or phase inverter. Except for heater characteristics and ratings, the 12SL7GT is identical to the 6SL7GT.$6.90
Vacuum Tube - 12SN7GT-A-B, Triode, Dual, Medium MU
Medium-mu twin triode suitable for use in a wide variety of general purpose amplifier and phase-inverter applications. Except for heater characteristics and ratings, the 12SN7GA-B is identical to the 6SN7GTB
$6.90 Vacuum Tube - 12SQ7, Diode, Dual, Triode Combines two diode units and a high-mu triode in a single envelope. Each section uses a common cathode. It is intended for service as a combined detector, AVC source, and high gain audio amplifier.$19.90
Vacuum Tube - 12SQ7GT, Diode, Dual, Triode
Combines two diode units and a high-mu triode in a single envelope. Each section uses a common cathode. It is intended for service as a combined detector, AVC source, and high gain audio amplifier.
$19.90 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.$7.90
Vacuum Tube - 5670 / 2C51W, Triode, Dual
Miniature medium-mu twin triode each section of which as a separate cathode connection. The tube is suited for use in a wide variety of general-purpose amplifier and mixer circuits as well as numerous multi-vibrator and oscillator applications.
$4.90 Vacuum Tube - 5687, Triode, Dual General purpose medium-mu double triode using the 9-pin button all-glass construction. The tube is characterized by high perveance and high emission capabilities.$19.90
Vacuum Tube - 5751, JJ Electronics
A dual triode that can be used in place of most 12AX7 circuits. The rugged build of this tube and reduced gain (30% less than a 12AX7) can improve headroom and give better control in high gain stages allowing users to more easily dial in sweet spots. The JJ 5751 features a smooth and balanced tone and a detailed response with low noise and low microphonics.
$13.95 Vacuum Tube - 5751, Tube Amp Doctor, Premium Selected 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!$20.95
Vacuum Tube - 5751, Sovtek
Sovtek 5751 dual triode.
$19.50 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.$24.95
Vacuum Tube - 5963 / 12AU7A, Dual Triode
Miniature, medium-mu twin triode for use as a frequency divider in computer applications.
$9.90 Vacuum Tube - 6072-A, Triode, Dual Low-noise, low-microphonic miniature twin triode designed primarily for use in the low-level stages of high-gain audio-frequency amplifiers.$69.95
Vacuum Tube - 6080, Triode, Dual
Low-mu twin power triode
$7.95 Vacuum Tube - 6111, Triode, Dual Subminiature medium-mu twin triode for use in general purpose amplifier applications. Each section has an individual cathode and is electrically independent.$7.90
Out of Stock
Vacuum Tube - 6189 / 12AU7WA, Triode, Dual, Medium MU
Miniature medium-mu twin triode suitable for a wide variety of general-purpose amplifier, oscillator, and multivibrator applications.
$14.95 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.$10.95
Vacuum Tube - 6267 / EF86, Pentode, Sharp Cut-Off
Pentode intended for use as A.F. amplifier.
$49.95 Vacuum Tube - 6350, Triode, Dual Miniature, medium-mu, twin triode primarily designed for service in computer applications. Each triode section features a high zero-bias plate current, a sharp-cutoff characteristic, and a separate cathode connection.$24.90
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