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Skipwave

Which one? Cct/layout, maybe I can help....

Peter

Hi r0t4ry You can use 2 transformers, but there are simpler & cheaper options. Option 1: Have a transformer wound for yourself with 24v & 48v windings. This should not cost much more than a single secondary transformer, & saves on space, complexity etc. Option 2: In my above PSU design, it uses the ...

Good to have you here, Brian. This board seems to be growing in leaps & bounds, & your experience will help a lot of folk here, I'm sure.

Regards
Peter

I have successfully used a 317 for phantom power, see my PSU here: http://1176neve.tripod.com/id26.html The 317 data sheet details the input/output differential should not be more than 37v, so the 317 can be floated for higher voltages. If you short the 48v to ground, it instantly blows the 317, tho...

A solid state amp should be fine as a starter. If you stay away from the mains side of the power transformer, the secondary voltages will probably not do any harm. I have not been able to find a schem of this amp, but it probably works on +30v & -30v, or even +40 & -40 volts dc. If it is a 70's amp,...

Transformers in wall warts are also generally the cheapest parts the maker can get away with. I've tried various wall warts with FX pedals & they almost always sound better with a decent power supply. The Roland/Boss warts did sound better than the generic cheapo's. For a mic pre, you need the best ...

Joe's stuff is getting a lot of attention, love to hear some of his stuff.

The pre looks amazing, good on ya!

Peter

Small Bear has some good kits too, good man to deal with.

http://www.smallbearelec.com/Projects/ProjandProd.html

Peter

That blue velvet just kills me.....

Very cool

Peter

Thanks Dave.

Peter

I know I'm blowing my own trumpet, but have a look at the Green Pre here:

1176neve.tripod.com

Peter