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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: Is this 300b too good to be true?

Smoke it and see.

Try a bridge/big cap feeding a 300B, then hook it up to a scope or annoyingly efficient speakers.

On the last Wavac 300B amp that I serviced, trimming the hum pots was essential to obtain the lowest noise level, and this had a set of filament supplies consisting of a chassis mount bridge and large cap soldered to it, much like the OP's link.

I did also check to see if the pots were perfectly centered, and they were not.


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