I have two transformers salvaged from broken amplifiers. I have plans to build some Chinese kit knockoffs. Building a dual mono with no plans on any form of bridging. One is 27-0-27 and the other is 30-0-30 according to my meter when connected to the mains. I was wondering if I should use some diodes to lower the voltage of the higher to get it in the same level as the other one. Like a second bridge rectifier in series. Don’t think it has to be perfect. Looking for better ideas or confirmation that my idea is ok.
Thanks.
Thanks.
I wouldn't bother trying to reduce the voltage. Just make sure the amps you look at are rated for at least -/+50 volt DC rails because those are the sort of voltage you will be approaching at light loading.
And those voltage are considered high and will preclude most chip based amps.
And those voltage are considered high and will preclude most chip based amps.
If they were my transformers intended for a dual mono setup, I might try to wind on some extra turns to the lower voltage transformer.
Yea its not a chip amp. According to the instructions I translated on google it says to avoid 63v+- on the rails so I should be good that way. Yea the voltage is prob close enough prob easier just doing a preamp and balance to equal it out if it has any noticeable difference. Thanks for the help.
In a nutshell, if each drives its own amp, no big deal.
Your ears won´t notice the minute power difference.
Just never ever try to put transformer *windings* in parallel, not even rectifien supplies in parallel.
Reason being you never put voltage sources in parallel, they will fight to death (literally) trying to set output voltage to their own.
Your ears won´t notice the minute power difference.
Just never ever try to put transformer *windings* in parallel, not even rectifien supplies in parallel.
Reason being you never put voltage sources in parallel, they will fight to death (literally) trying to set output voltage to their own.
Different supply voltages will have zero effect on the gain or loudness of the amp. It doesn't work like that.
The only difference it makes is that one channel will clip before the other as you approach maximum volume but given the high levels anyway it will make absolutely no difference whatsoever.