AC/DC advice
Moderator: Joe Malone
AC/DC advice
I need +30V and -10V for an 1176. My transformer (nomial 2x 25V) supplies some 29V AC, but I only get out some +25V max. on the DC side. Can someone give me a hint what to do? Or do I really need a nominal 2x 30V transformer?
- Joe Malone
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No the 2 x 25vac transformer should give you +/-35vdc unreg for the normal +V and -V regs on the AC/DC so should adjust up just fine. Do you have the phasing of the 2 x 25vac windings correct. And the centre tap connected to 0v and the other to winding ends to a AC in each?I need +30V and -10V for an 1176. My transformer (nomial 2x 25V) supplies some 29V AC, but I only get out some +25V max. on the DC side. Can someone give me a hint what to do? Or do I really need a nominal 2x 30V transformer?
Or are you trying to use the +48v rail for the +30v without fitting the Doubler wire strap? I would only use the +V and not the 48v rail for the +30V unless you were using a 2 x 15vac transformer as then the 48v rail would be fine as it would not be wasting to much heat.
Joe
JLM Audio
Capturing Audio without Injury
JLM Audio
Capturing Audio without Injury