These AVVT 32B tubes are electrically compatible to standard 300B, but allow higher dissipation and voltage. Heater filaments are 5 V / 1.3 A. These tubes are built like a tank!

I am the first owner, and I hardly used these tubes. All tubes were tested with a curve tracer and show like-new parameters. No box.

Full test data, parameters and matching are available here:

https://mbrennwa.github.io/curvetracedata/32B/index.html

-------------

history:

- 10 Jan 2024: fixed mistake in description (wrong: 302B, correct: 32B as shown on photo)