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 - 6AQ8, Electro-Harmonix
Electro-Harmonix 6AQ8 dual triode preamp tube. Made in Russia.
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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.
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Vacuum Tube - 6DA6 / EF89, Pentode
High-slope R.F. pentode particularly suitable for use in F.M. receivers.
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