Solid State Guitar Amp Forum | DIY Guitar Amplifiers

If you know of someplace where you can find or buy an old-style float and arm style toilet valve, that arm is often copper or brass, and the diameter will fit in most soldering irons.  Cut off small sections and file one end into a tip. 

If you want REALLY budget tips, I have been known to buy a screwdriver or two from the local hardware store that sells cheap junk.  Found one with a shaft diameter that fit and cut it into sections with my Dremel.  No, it doesn't work as good as a proper tip, but it'll get you by while you save up for a nice tip.

The wire from CN2 IN on the preamp board is the reverb send. It plugs into IN on the reverb unit. OUT goes to CN3

Hi..

Thanks for the replies.
I agree the voltages I have are nothing to take lightly.  Making a conscious effort to not touch anything with my left hand when working on this and ensuring caps are discharged enough before I go poking around.

when I ordered this transformer a couple years ago, I had expected to get a 36-0-36 supply, but I guess I missed the target on that one..

I've been reading and trying to understand how power amps/inside of opamps work and its starting to make sense..  I will definitely look into https://sound-au.com/projects-0.htm#mus for more understanding.

I've hacked together couple power amp circuits (albeit crude ones) at lower voltages with some success.. 
Trying to actually calculate things properly and really understand exactly what is happening where this time around.

Thanks

Transformers produce AC voltages, and those voltages are called RMS voltages.  SInce AC voltage changes all the time, we use an average.

36v AC, moves from zero up to a peak of About 51v, then back down through zero and out to -51v and back.   The average of that zero to 51v is 36v.  When you rectify and filter that, the caps charge up to the peak of 51vDC.   This is how it works.  You take the RMS AC voltage of the transformer, and multiply by 1.414 to get the peak voltage, which will be the rectified and filtered result.We might subtract a volt or two for losses in the rectifiers or some such, but that basic formula is close enough.

Welcome,,
 If this is your first project I would suggest you do some reading first.
The power supply voltage you have is likely too high for a novice.
with 50VDC rails it's possible to end up dead,, the you accidentally touch both rails then it's 100Volts across your heart. 

You need a supply of around 35-0-35VDC would be a lot safer and far less chance of blowing up your circuit and dying as well.

Working with anything over about 80Volts is a potential death trap.

Go here and do a lot of reading; https://sound-au.com/projects-0.htm#mus

Look at Project27; It's a 100Watt guitar amp running from a
SAFE 35-0-35VDC. You can even purchase a PCB from Rod which will save you a lot of blood and sweat trying to make your own.

This is by far one of the best places for those wanting to DIY an amplifier,, tons of stuff and written for folks like you who do not have the skill to go it alone.
Cheers Phil.