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.

Combines two independent diode units in the 7-pin miniature construction. Its high perveance permits high efficiency in either FM or AM detector service.
$7.03
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Originally: $7.90

Power tetrode, medium-mu 9-pin miniature for use in automobile radio receivers operated directly from 12-volt storage batteries.
$5.25
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Originally: $5.90

Combined high-mu voltage amplifier and double-diode detector using the 7-pin miniature construction. It is intended to provide output voltage adequate for full-power output of most beam-power tubes.
$6.14
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Originally: $6.90

Amperex Bugle Boy Brand. Miniature, high-mu, twin triode designed for use as a grounded grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approximately 300 megacycles.
$44.90
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Originally: $50.45

Mullard Brand. Miniature, high-mu, twin triode designed for use as a grounded grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approximately 300 megacycles.
$44.90
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Originally: $50.45
Out of Stock

Telefunken brand. Miniature, high-mu, twin triode designed for use as a grounded grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approximately 300 megacycles.
$44.90
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Originally: $50.45
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GE Brand. Pentode amplifier having a sharp cut-off control characteristic using the miniature construction. With high transconductance, low grid-plate capacitance, it is intended for service as either an RF or AF amplifier.
$57.94
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Originally: $65.10
Out of Stock

New-Old-Stock (NOS) tube
12AU7A - Triode, Dual, Mullard Brand
12AU7A - Triode, Dual, Mullard Brand
$88.91
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Originally: $99.90
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12AU7A - Triode, Dual, Telefunken Brand
$57.94
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Originally: $65.10
Out of Stock

Telefunken Brand. Miniature medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers.
$4.36
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Originally: $4.90

Triode, Dual, Telefunken Brand - Ribbed Plate
$262.55
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Originally: $295.00

Triode, Dual, Telefunken Brand - Smooth Plate
$266.11
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Originally: $299.00
Out of Stock

12AX7A - Triode, Dual, Amperex Bugle Boy Brand
$169.01
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Originally: $189.90
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Pentode type amplifier tube with remote cutoff characteristics designed for use as a high frequency amplifier in radio receivers.
$6.14
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Originally: $6.90

Miniature remote-cutoff pentode intended for use as a radio-frequency or intermediate frequency amplifier in automobile radio receivers.
$3.47
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Originally: $3.90

High transconductance, semi-remote cut-off, pentode amplifier. It is designed for service as an automatic gain controlled IF amplifier in 150mA. series heater operated television receivers.
$12.37
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Originally: $13.90

Beam power pentode primarily designed for use as the horizontal-deflection amplifier in television receivers.
$10.59
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Originally: $11.90

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.
$6.14
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Originally: $6.90

Pentode in the 7-pin miniature construction. It is intended for use as an RF amplifier in automobile radio receivers and is designed to operate with its plate and screen voltages supplied directly from a 12-volt storage battery.
$4.36
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Originally: $4.90

Medium-mu general-purpose triode designed for use as an amplifier, an oscillator, or a detector. Except for heater ratings, the 12J5 is identical to the 6J5.
$6.54
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Originally: $7.35
Out of Stock

General purpose medium-mu triode. It is useful for service as an oscillator or audio-frequency amplifier.
$5.25
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Originally: $5.90

Sharp cut-off general purpose amplifier. With the exception of heater and capacitance ratings, the electrical characteristics are similar to those of the 6C6.
$3.47
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Originally: $3.90

The 12JB6A is the same as the 6JB6A except for heater characteristics and ratings.
$20.38
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Originally: $22.90

Miniature space-charge-grid tetrode intended for use as a driver for the transistor power-output stage of automobile radio receivers.
$7.92
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Originally: $8.90