6V6 Audio Amplifier

0-300 volt bench supply for tube prototyping

0-500 volt Vacuum Tube Voltmeter (VTVM)

 2.5 dB pad to interface 100 watt SSB transceiver to Collins 30L1

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Come back to the 50s and view some of our recent  vacuum tube  projects



Line voltage trimmer for 115 volt vintage eqpt.