# 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.

#### Ruby

Ruby tubes are manufactured in China and tested for quality and performance.

#### New Old Stock (NOS)

Our new-old-stock tubes were made by the major U.S. manufacturers, along with a small number of European manufacturers and are tested and guaranteed.

#### 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 - 6FQ5A / 6GK5, Triode, HF
Semi-remote cutoff triode in the 7 pin miniature construction. It is designed for use as a VHF and RF amplifier at a B+ of 135 volts.
$3.45 Save 50% Originally:$6.90
Vacuum Tube - 35B5, Tetrode, Beam Power
Miniature beam power amplifier especially designed for use in the power output stage of a-c/d-c receivers. Its small size and high efficiency make the tube especially useful where space limitation prevent the use of larger types.
$3.55 Vacuum Tube - 6BQ7A / 6BZ7, Dual Triode Miniature, medium-mu twin triode primarily designed for use as a cascode, radio-frequency amplifier in very high frequency television tuners. In this application, its performance is characterized by high gain and low noise figure.$3.55
Vacuum Tube - 1S5 / DAF91, Diode, Sharp Cut-Off Pentode
Miniature tube containing a diode and a sharp-cutoff pentode. It is designed for use as a combined detector and audio-frequency voltage amplifier in compact battery-powered equipment.
$3.55 Vacuum Tube - 6AH6, Pentode, Sharp Cut-Off Miniature sharp-cutoff pentode. Its high transconductance and low input and output capacitance adapt it to use as a wide-band amplifier or as a reactance tube.$3.55
Vacuum Tube - 12SJ7, Pentode, Sharp Cut-Off
A single-ended RF pentode having sharp cut-off characteristics. It is designed for use as a general purpose amplifier, biased detector, radio frequency oscillator or as a mixer tube in properly designed circuits.
$3.90 Vacuum Tube - 6AT6 / 6BK6, Dual Diode, Triode Miniature, duplex-diode, high-mu triode designed for use as a combined detector, amplifier, and automatic-volume-control tube$3.90
Vacuum Tube - 6CA5 / 6EH5, Tetrode, Beam Power
Miniature beam power pentode designed for service as an audio output amplifier. It features high power sensitivity at relatively low plate and screen voltages.
$3.90 Vacuum Tube - 6DG6GT / 6W6GT, Beam Power Amplifier Beam power pentode intended for service as an audio power amplifier.$3.90
Vacuum Tube - 6DT8, Dual Triode
Miniature, high-mu, twin triode designed for use as a radio frequency amplifier or as a combined oscillator and mixer in FM receivers.
$3.90 Out of Stock Vacuum Tube - 7Y4, Rectifier, Full Wave Heater type vacuum twin diode using the lock-in construction. It is intended for use as a full-wave rectifier in either AC or storage operated equipment where economy of heater power is desired.$3.90
Vacuum Tube - 0Z4-A, Rectifier, Full Wave, Gas
The 0Z4A is a gas-filled, double diode employing an ionic-heated cathode. Its principal application is as a full-wave power rectifier in equipment with vibrator type power supplies.
$3.90 Vacuum Tube - 12AD6 / 12AG6, Heptode Miniature heptode primarily intended to perform the combined functions of mixer and oscillator in automobile radio receivers. Specially designed to operate with plate and screen voltages supplied directly from a 12-volt storage battery.$3.90
Vacuum Tube - 12AF6, Pentode
Miniature pentode intended for use as a radio-frequency or intermediate frequency amplifier in automobile radio receivers. The tube is specially designed to operate with plate and screen voltages supplied directly from a 12-volt storage battery.
$3.90 Vacuum Tube - 12AJ6, Duplex Diode, Triode Miniature double didoe, high-mu triode intended for use as a second detector audio amplifier. It is designed for operation where the heater and plate voltages are supplied directly from a 12-volt automotive storage battery.$3.90
Vacuum Tube - 12BL6, Pentode
Miniature remote-cutoff pentode intended for use as a radio-frequency or intermediate frequency amplifier in automobile radio receivers.
$3.90 Vacuum Tube - 12J7GT, Pentode, Sharp Cut-Off Sharp cut-off general purpose amplifier. With the exception of heater and capacitance ratings, the electrical characteristics are similar to those of the 6C6.$3.90
Vacuum Tube - 13DE7, Triode, Dissimilar Double
Miniature double triode in the 9-pin miniature construction. Section #1 is intended for use as a vertical deflection oscillator having medium mu and section #2 is intended for use as a vertical deflection amplifier with lo mu.
$3.90 Vacuum Tube - 1H5GT-G, Diode, Triode, High MU Tube containing a single diode and a high-mu triode in one bulb. It is designed for service as a diode detector, AVC rectifier, and as a resistance-coupled amplifier.$3.90
Vacuum Tube - 50B5, Beam Power Amplifier
Miniature beam-power amplifier designed primarily for use in the output stage of compact a-c/d-c receivers. The 50B5 features high power sensitivity and is capable of providing a relatively high power output
$3.90 Vacuum Tube - 6CB6A / 6CF6, Pentode, Sharp Cut-Off Miniature pentode designed for use as a radio-frequency or intermediate-frequency amplifier in television receivers. Features of the tube include high transconductance and low interelectrode capacitances.$3.90
Vacuum Tube - 6SA7, Heptode
Metal pentagrid converter. It is intended to perform the combined functions of the mixer and oscillator in superheterodyne receivers, especially those of the all-wave type. The 6SA7 is constructed to provide excellent frequency stability.
$3.90 Vacuum Tube - 6AQ6, Diode, Dual, Triode Miniature double diode high mu triode designed for service as a combined first audio amplifier, detector, and AVC tube in radio receivers. However, the 6AQ6 employs a 150 mA heter.$3.90
Vacuum Tube - 12JT6A, Beam Power Amplifier
The 12JT6A is the same as the 6JT6A except for heater characteristics and ratings.
$3.95 Save 50% Originally:$7.90
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