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Old 9th May 2009, 05:00 PM   #1
diyAudio Member
 
Join Date: Jan 2006
Location: Central Ohio
Default Tranny capability question...

A very small group is building the Millett UniAmp and I have had a couple of questions pop up that I'm not certain of the answers.

Mr. Millett has kindly allowed me to have pcbs made up using his gerber files. The design is one giant driver pcb per channel, and his documentation and parts recommendations are based on one channel, which is easy enough, but......

The first question concerns the power transformer's capabilities.
Needed is 400-0-400@200mA, 6.3VCT@5A, and 5V@3A. Some builders want to use a single chassis design and use one power tranny for two boards. Would 400mA capability be a must? And multiple 6.3VCT and 5V secondaries, instead of hoping to find a 6.3VCT capable of 8-10A, and a 5V tap capable of 6A?

Second question; The pcb is set up for that 6.3VCT. Is there some way to use a tranny with 6.3V with no CT?

Thanks!
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