Vacuum Tubes & Valves
Our tube inventory spans the transition from the 1920s point-contact era through the last American, German, and Russian factories to shutter. Every tube is tested on period-appropriate equipment. Preamp, power, rectifier, industrial control, and oscilloscope classes; NOS, NIB, and matched-pair pulls.
Blackburn-plant brown-base EL34s, Xf2 date code, four bottles, four matching foil boxes.
Ulm-made smooth-plate ECC83 with the raised diamond in the glass — the reference preamp tube.
Original Kansas City-plant 300B in its factory carton — not the reissue, not the clone.
Heerlen-plant ECC81 with the little brass horn on the label. Sweet, quiet, honest.
The metal-base GZ34 — the rectifier the tweed-Fender crowd will not shut up about.
Late-run American full-wave rectifier from the last full year of Harrison production.
The original Marconi-Osram KT88s. Not the reissue. If you have to ask, you already know.
Xenon-filled miniature thyratrons for relay control, punch-card readers, and pinball logic.
Five-inch electrostatic-deflection CRT from the company that literally invented the American scope.
The blue-glow half-wave rectifiers of the golden age of ham radio. Handled with respect.