Kingston
Well-known member
making regulated B+ supplies seems quite easy with zeners and TIP50. But what about user selectable B+ using series zeners?
I've been toying with the idea of a preamp with ideal B+ voltages, but also a user selectable "starved plate" setting for crunch and farts.
Will this work, or is it plain dangerous and just kills parts and why? I just can't see it. If it's dangerous, what could be done to make the idea work?
SW1 is basically a DPST switch or a relay.
Thanks for the help,
Mike
I've been toying with the idea of a preamp with ideal B+ voltages, but also a user selectable "starved plate" setting for crunch and farts.
Will this work, or is it plain dangerous and just kills parts and why? I just can't see it. If it's dangerous, what could be done to make the idea work?
SW1 is basically a DPST switch or a relay.
Thanks for the help,
Mike