# 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 - 6J6A / ECC91, Dual Triode, Medium MU
Twin triode in the 7 pin miniature construction. It can be operated in parallel or push-pull.
$2.45 Save 50% Originally:$4.90
Vacuum Tube - 6BN6 / 6KS6, Discriminator, Gated Beam
Heater-cathode type beam tube of miniature construction designed primarily to form the combined operations of the limiter, discriminator, and audio-voltage amplifier in FM and intercarrier television receivers.
$2.45 Save 50% Originally:$4.90
Vacuum Tube - 5654 / 6AK5W, Pentode, Sharp Cut-Off, RF
Miniature sharp-cutoff pentode for use as a wide-band, high-frequency amplifier. It is also useful in video and audio amplifiers, oscillators, mixers, frequency multipliers, and cathode followers.
$2.45 Save 50% Originally:$4.90
Vacuum Tube - 6BY6, Heptode
Miniature dual-control heptode designed primarily for use as a combined sync separator and sync clipper in television receivers. Each of the two independent control grids exhibits a sharp cutoff characteristic.
$2.95 Save 50% Originally:$5.90
Vacuum Tube - 3Q4, Pentode, Power
The type 3Q4 is a miniature type power-amplifier pentode designed for use in the output stage of battery operated equipment.
$2.95 Save 50% Originally:$5.90
Vacuum Tube - 6HA5 / 6HM5, Triode, HI MU
Miniature triode designed particularly for service in VHF television tuners as a grounded-cathode RF amplifier.
$2.95 Save 50% Originally:$5.90
Vacuum Tube - 6AF4A / 6DZ4, Triode, UHF, Oscillator
Medium-mu triode in the 7-pin miniature construction. It is designed for local oscillator service in television receivers which operate in the UHF region, internal lead inductance is reduced by employing double connections to the plate and grid.
$2.95 Save 50% Originally:$5.90
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 - 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 - 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 - 0B3 / VR90, Voltage Regulator
The 0B3 is a two-element gas-filled, cold cathode voltage regulator. It is designed to provide regulated outputs of approximately 90 volts.
$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 - 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 - 6DG6GT / 6W6GT, Beam Power Amplifier Beam power pentode intended for service as an audio power amplifier.$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 - 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 - 7A8, Octode Converter
The 7A8 is an octode converter designed to perform the combined functions of the oscillator and mixer in superheterodyne receivers.
$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 - 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 - 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
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 - 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 - 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