Vintage vacuum tubes displayed on a wooden workbench alongside analog test equipment, an oscilloscope, and surplus radio electronics, with the heading “Vacuum Tubes & Surplus Gear.”

Surplus Gear

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Vacuum Tubes

Tubes are untested and offered as-is.

RTT 12GW6 12DQ6B

RTT 12GW6/12DQ6B

Beam Power Amplifier Vacuum Tube

$ 8 .00
  • For horizontal deflection amplifier applications
  • Used — untested, sold as-is
  • 1 Available
RCA 12L6GT

RCA 12L6GT

Beam power output tube

$ 2 .50
  • Audio amplifier
  • Used — untested, sold as-is
  • 1 Available
GE 12W6GT

GE 12W6 GT

Beam Pentode

$ 5 .00
  • For TV vertical deflection amplifier applications
  • Also for audio amplifier power output applications
  • Used — untested, sold as-is
  • 2 Available
Marconi 12AX4GTA

Marconi 12AX4GTA

Half-Wave Vacuum Rectifier

$ 5 .00
  • Damper tube in horizontal deflection circuits
  • Used — untested, sold as-is
  • 2 Available
RTT 13EM7/15EA7

RTT 13EM7/15EA7

Dissimilar dual triode

$ 5 .00
  • TV vertical oscillator and output stages
  • Used — untested, sold as-is
  • 1 Available
Rogers 25BQ6GTB/25CU6

Rogers 25BQ6GTB/25CU6

Beam power tube

$ 5 .00
  • TV horizontal-deflection output stage
  • Used — untested, sold as-is
  • 1 Available
Marconi 35Z5 GT

Marconi 35Z5 GT

Half-wave rectifier tube

$ 5 .00
  • Power supply rectifier
  • Used — untested, sold as-is
  • 2 Available
GE 75

GE 75

Double-diode triode tube

$ 5 .00
  • Radio detector, AVC, and amplifier
  • Used — untested, sold as-is
  • 1 Available
GE 78

GE 78

Remote-cutoff RF pentode

$ 5 .00
  • RF or IF amplifier
  • Used — untested, sold as-is
  • 1 Available
Continental 17AX4GT

Continental 17AX4GT

TV damper diode tube

$ 3 .00
  • TV horizontal-deflection circuit damper
  • Used — untested, sold as-is
  • 1 Available
Westinghouse 35L6GT

Westinghouse 35L6GT

Beam power amplifier tube

$ 5 .00
  • Audio power amplifier
  • Used — untested, sold as-is
  • 1 Available
Philco 50L6GT/G

Philco 50L6GT/G

Audio output beam-power tube

$ 12 .00
  • Audio output stage of AC/DC radios
  • Used — untested, sold as-is
  • 1 Available
Sylvania 1G3GT/1B3GT

Sylvania 1G3GT/1B3GT

High-voltage, half-wave vacuum rectifier

$ 5 .00
  • TV CRT Anode supply
  • Very high DC voltage 15-25 kV
  • Used — untested, sold as-is
  • 1 Available
Admiral 3AT2

Admiral 3AT2

High-voltage, half-wave vacuum rectifier

$ 5 .00
  • TV CRT Anode supply
  • Very high DC voltage 15-25 kV
  • Used — untested, sold as-is
  • 1 Available
Philco 1K3/1J3

Philco 1K3/1J3

High-voltage rectifier tube

$ 5 .00
  • TV CRT Anode supply
  • Very high DC voltage 26 kV PIV
  • Used — untested, sold as-is
  • 1 Available
GE 12AX4GTB

GE 12AX4GTB

High-voltage damper diode tube

$ 5 .00
  • TV horizontal deflection circuits
  • Used — untested, sold as-is
  • 2 Available