Ok.. finally got off my ass and wired up the transformer and finished the power section. That little transformer was cheap and is dead on spec. The rest of my components .. eh.
So the B+ voltage is expected to be around 140V with load and 150V unloaded. I got 173V unloaded so I might be running a bit hot, but that is ok, as this tube is rated to 250 typical and 300 max. As we shall see when we do the calculations, this will actually make it just a bit easier to chart.
In fact, in the Champs, Fender ran this tube at 150V and Gibson ran it at 165V in the Skylarks, so we will be operating right smack in the late 50’s!
For the filament, I got 16.6V unloaded, which is close enough to the expected 15-16V that I am happy with the power supply. I will button it up separately from the rest of the McTube stuff as this is stage one of the Tube Amp Computer!
More soon.
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