Quote:
Originally Posted by bob91343
You can use a transformer with a 6.3V winding and either retrofit different tubes (I don't recall the setup) or add a little 6.3V transformer to raise the voltage. There are many ways to do the job.
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I replaced the transformer in a Heath AR2 receiver, with one from a scrap set. It looked almost identical to the original, but it had a 6 volt heater winding. I just replaced all the tubes with their 6 volt equivalents.
Heath used 12 volt tubes so they could use their beloved 12A6, as an audio output. They used that tube for everything, even as a rectifier.
