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 - 37, Triode
General purpose triode designed for service as an oscillator, detector, or amplifier.
Vacuum Tube - 3A4, Pentode, Power Amplifier
The 3A4 is designed for use in compact, lightweight, portable equipment. The relatively large filament employed in the 3A4 enables it to supply the high peak currents required in RF power applications.
Vacuum Tube - 3A5 / DCC90, Dual Triode
The 3A5 is intended for use in high frequency applications. The relatively large filament employed in the 3A5 enables it to supply the high peak currents required in RF power applications.
Vacuum Tube - 3C24 / 24G, Triode
Medium-mu triode - modulator, oscillator, amplifier.
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.
Vacuum Tube - 3Q5GT, Tetrode, Beam Power
Filament type power-amplifier pentode tube designed for use in the output stage of battery operated equipment.
Vacuum Tube - 3S4 / DL92, Pentode, Power
Filamentary type power output pentode in the miniature construction. It is characterized by economy of filament power and ability to perform well at low plate supply voltages such as encountered in portable equipment.
Vacuum Tube - 3V4 / DL94, Pentode, Power
Miniature power amplifier pentode designed for use in the power output stage of compact, battery operated equipment. It is particularly useful in three-way portable receivers which employ 90-volta batteries.
Vacuum Tube - 407A, Dual Triode, Medium MU
9-pin miniature double triode with separate indirectly heated cathodes. It is designed for use in amplifier, mixer, oscillator, multivibrator and clamp circuits. The useful frequency range extends through the VHF range.
Vacuum Tube - 40KG6A / PL519, Beam Power Amplifier
Magnoval type used as a horizontal-deflection amplifier in color television receivers.
Vacuum Tube - 41, Pentode, ST Glass
The 41 is an indirectly heated cathode type power amplifier pentode designed for service in the output stages of AC, AC/DC and storage battery operated receivers.
Vacuum Tube - 417A, Western Electric, Triode
9-pin miniature triode with an indirectly heated cathode. It is intended primarily for grounded-grid operation in the input stage of broad band amplifiers.
Vacuum Tube - 42, Pentode, Power Amplifier, ST Glass
42 is a pentode amplifier designed for application in power output stages of receivers
Starting at $15.80
Vacuum Tube - 420-A / 5755, Western Electric, Dual Triode
Triode, Double, Western Electric brand
Vacuum Tube - 42KN6, Beam Power Amplifier
Horizontal deflectoin amplifier
Vacuum Tube - 43, Pentode
Glass type power amplifier pentode designed especially for use in the output stage of a-c/d-c receivers. The 43 is identical in electrical characteristics to the type 25A6 tube.
Vacuum Tube - 45, Triode
Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired.
Vacuum Tube - 46, Dual Grid, Power Amplifier, ST Glass
Filament type double grid power amplifier tube. It is especially designed for class B operation to give a large amount of undistorted power output.
Vacuum Tube - 47, Pentode, Power Amplifier, ST Glass
Filament type output power pentode.
Vacuum Tube - 49, Dual Grid, Power Amplifier
Dual grid power tube designed for use in a class A or class B output stage.
Vacuum Tube - 4D32, Tetrode, Beam Power
Beam type aligned grid power amplifier. It has a unipotential oxide-coated cathode, a hard glass nonex bulb, and a glass base with short tungsten leads. The tube has a heater designed to operate from a 6.3 volt supply.
Out of Stock
Vacuum Tube - 4H4C, Ballast Tube
4H-4C ballast tube.
Out of Stock
Vacuum Tube - 50A1 / D5TF30, Ballast Tube
Gas-filled ballast tube designed to maintain a relatively constant current over a specified operating range.
Vacuum Tube - 50A5, Tetrode, Beam Power
Beam power amplifier designed primarily for use in the output stage of a-c/d-c receivers. The 50A5 features high power sensitivity and high efficiency when operated at relatively low plate and screen voltages.