06-09-2023, 04:03 AM
Quote:Or (a guess) is the power switch coupled with the band switch and turns it off when none of the bands are selected (it has 3 bands but 4 positions) ?
Yes, this is a correct assumption. That's right, the power switch is combined with the range switch.
Why is there no voltage switch? I suspect that the previous master simplified the scheme and simply threw out all the details that had to do with the voltage of 120 volts. But since this is a transformerless version, there could be only a few additional resistors. I think that you can easily turn it back and even simplify the scheme even more - throw away everything that is related to the voltage of 220 volts. You don't need it.
Old Tube Radio Online Museum / Музей ретро радіо
https://www.youtube.com/user/RadioSvit?d...lymer=true
Sincerely Peter
З повагою Петро