Solid State Guitar Amp Forum | DIY Guitar Amplifiers
Solid State Amplifiers => Amplifier Discussion => Topic started by: joecool85 on January 24, 2020, 08:27:26 PM
I'm thinking about adding reverb to my K20-X and rather than build out the circuit as the K30RX (they share the same board), I'm thinking of using a Belton brick. This would require 9v DC to supply it. I'm leaning towards simply attaching a basic 7809 regulator to the positive line of the +/-18v PSU output. I know that technically this would draw a few ma off that end of the PSU potentially making it unbalanced, but I can't image it would be an issue. So, what do you guys think?
Sometimes the + side of split supply is already used more than the (-) side. Is it possible to use the (-) side instead?
Might help keep balance, but possibly not significant imbalance anyway.
I don't believe the + side is getting any more load than the - side. I know both sides measure identical voltage, so there is no sag on that side anyway. I've attached the schematic in case this helps.
Should be no problem using the + side then.