# 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.

#### New Old Stock (NOS)

Our new-old-stock tubes were made in the U.S. by the major manufacturers, with several types made in Western Europe or Japan. All NOS tubes are tested and guaranteed.
Vacuum Tube - 7H7, Pentode
Semi-remote cutoff pentode using the lock in construction. IT is designed for use as an RF or IF amplifier.
$6.90 Vacuum Tube - 12DQ7, Pentode, Sharp Cut-Off 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.$6.90
Vacuum Tube - 35A5, Tetrode, Beam Power
Beam power amplifier designed primarily for use in the output stage of a-c/d-c receivers. It has high power sensitivity and high efficiency at relatively low plate and screen voltages.
$6.90 Vacuum Tube - 6BV8, Dual Diode, Triode Miniature duplex-diode medium-mu triode in which separate cathode and plate connections are provided for each diode section. The tube is intended primarily as a combined synchronous detector and chrominance amplifier in color television receivers.$6.90
Vacuum Tube - 6HF8, Triode, Pentode
High-mu triode and sharp-cutoff pentode in the 9 pin miniature construction. It is intended for use in color and black-and-white television receivers.
$6.90 Vacuum Tube - 25L6GT / 25W6, Beam Power Amplifier, Tubular Glass Beam pentode designed for use in the audio-frequency power output stage of radio and television receivers. Features include high power sensitivity and high efficiency at relatively low plate and screen voltages.$6.90
Vacuum Tube - 12SF7, Diode, Pentode, Remote Cut-Off
Heater-cathode type diode pentode tube designed for use as a detector and intermediate-frequency or audio-frequency amplifier. Except for heater rating the 6SF7 and 12SF7 are identical.
$6.90 Vacuum Tube - 1U4, Pentode Miniature, filamentary, sharp-cutoff pentode intended for radio frequency or intermediate frequency amplifier use in battery-operated receivers.$6.90
Vacuum Tube - 0A3 / VR75, Voltage Regulator, Diode, Glow-Discharge
Voltage Regulator, Diode, Glow-Discharge type.
$6.90 Vacuum Tube - 6JH8, Double Plate Beam Miniature double-plate sheet-beam tube which incorporates a pair of balanced deflectors to direct the electron beam to either of the two plates and a control grid to vary the intensity of the beam.$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 - 6SG7, Pentode, Semi Remote Remote-cutoff pentode designed for use as a high-gain radio or intermediate-frequency amplifier. Features of the tube include high transconductance, low grid-plate capacitance, and a dual cathode connection$6.90
Vacuum Tube - 6AL7GT, Indicator
The 6AL7GT is an electron-ray indicator designed especially for use in AM-FM receivers. Through its use, precise tuning of either FM or AM signals is easily accomplished without the use of additional tubes or circuit components.
$6.90 Vacuum Tube - 6DR7, Triode, Dissimilar Double Double triode with dissimilar section in the 9 pin miniature construction. Section #1 has a high mu and is intended for use as a vertical deflection oscillator. Section #2 has a low mu and is designed for use as a vertical deflection amplifier$6.90
Vacuum Tube - 12V6GT, Tetrode, Beam Power
Beam pentode designed primarily for use in the audio output stage of a-c and storage-battery-operated equipment. It is capable of supplying high power output with high sensitivity, high efficiency, and low third and higher-order harmonic distortion.
$6.90 Vacuum Tube - 2D21 / PL21, Thyratron Miniature, four-electrode, inert-gas-filled thyratron with negative control characteristics of the tube include a high control ratio essentially independent of temperature over a wide range low grid-anode capacitance and very low grid current.$6.90
Vacuum Tube - 5AZ4, Rectifier, Full Wave
Filament-type high-vacuum full-wave rectifier designed for service in power supplies of moderate current requirements. The electrical characteristics of the 5AZ4 are equivalent to those of the 5Y3GT.
$6.90 Vacuum Tube - 12AV7, Twin Triode Miniature, medium-mu twin triode for use as a radio-frequency amplifier or as a combined oscillator and mixer in VHF television receivers. It my also be used as an audio-frequency amplifier.$6.90
Vacuum Tube - 13EM7 / 15EA7, Triode, Dissimilar Double
Dissimilar double-triode designed for use as a combined vertical deflection oscillator and amplifier in television receivers
$6.90 Vacuum Tube - 6C4 / EC90, Triode, Medium-MU Miniature, medium-mu triode suitable for use in a wide variety of general purpose applications. It is especially useful as a local oscillator in high-frequency and very-high-frequency receiver circuits.$6.90
Vacuum Tube - 6K8, Triode, Hexode
Consists of a triode oscillator and a hexode mixer in a common envelope. Reduces interaction between the oscillator and mixer sections and makes for stable operation in superheterodyne receivers on the high frequencies as well as the broadcast band.
$6.90 Vacuum Tube - 12SK7, Pentode, Remote Cut-Off The T-12SK7 is the same as the 6SK7 except for heater ratings.$6.90
Vacuum Tube - 6SS7, Pentode, Remote Cut-Off
The 6SS7 is an RF pentode which as remote plate current cutoff. It is suitable for operating with AVC in Rf and IF amplifiers. The use of this tube will reduce cross modulation effects.
$6.90 Vacuum Tube - 6BL8 / 6LN8, Triode, Pentode Triode-pentode in the 9 pin miniature construction. It is designed for use as a frequency changer in television receivers.$6.90
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