2 similar transformers (as 'identical' as manufacture can be) each to it's own rectified and regulated supply.
Can the 2 dc supplies be series connected to give + 0 - output ? Anything to consider.
I've been looking for some hours now but can't find a definitive answer. Most articles deal with the 2 transformers series output before the rectification and regulation not after.
Can the 2 dc supplies be series connected to give + 0 - output ? Anything to consider.
I've been looking for some hours now but can't find a definitive answer. Most articles deal with the 2 transformers series output before the rectification and regulation not after.
Yes, people here do that all the time. Of course high voltages require more careful consideration.
Your example, as with others I have seen, show a shared core. I have 2 independent transformers.
Will that still be O.K.?
Will that still be O.K.?
That would still work, but is more subject to unit-to-unit variation among "identical" transformers,
and could have somewhat different DC voltages (and hum) on each supply.
Dual secondaries for lower voltages are standard these days, so no reason to use two separate transformers.
If the two transformers are not exactly the same model, it may not be a good idea for audio use.
and could have somewhat different DC voltages (and hum) on each supply.
Dual secondaries for lower voltages are standard these days, so no reason to use two separate transformers.
If the two transformers are not exactly the same model, it may not be a good idea for audio use.
I hope that I am on track here, as my question sounds similar to the original, but different too. I am making a tube preamp using 4ea. 6SN7 tubes. Now each tube heater needs 600ma at 6.3 volts. The transformer that I chose is made by Antek (AN0216) with two secondaries capable of 2A each IIRC. Of course the total needed for the tube heaters is at 2.5 Amps at least..... OK, now the twist. I actually have two low voltage regulators on a single board (PS21 by Glass ware Audio), and I realize that one option would be to wire the two secondaries of the transformer in parallel and just use one of the regulators. BUT, what if each secondary went to one of the two regulators and then was run parallel to the heaters. I only ask because of the fact that I don't want to waste the use of one regulator if two could be utilized.
I must apologize that there is no way for me to do much in that respect. I can say that this is an Akido preamp design from 2007 where there are both input and output tubes.
The power supply is mostly what I am wondering about as far as using each low voltage regulator outputs in parallel and then using that for the tube heaters. Does that help?
The power supply is mostly what I am wondering about as far as using each low voltage regulator outputs in parallel and then using that for the tube heaters. Does that help?
