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In Reply to: RE: interesting afternoon..... posted by vinnie2 on September 02, 2015 at 13:45:58
It's easy.
Each stage inverts phase.
If you have an even number of total stages then the output signal will be "in absolute polarity", if you have an odd number of total stages then the output will be inverted. So flip your speaker wires.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Follow Ups:
Is that just the number of stages in the amp, or does it include the stages in the preamp as well? If it does we are back to four. The 26amp I was testing had 3 26's and a 45, but the 3rd 26 is actually the tube from the single 26 preamp I was working on earlier. Each of the 26 stages is identical for the amp and preamp.
Edits: 09/02/15
"Is that just the number of stages in the amp, or does it include the stages in the preamp as well?"
Total stages. A one stage preamp inverts and three stage amp inverts. The two in combination do not invert.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Ok, the one stage preamp inverts odd, then the first stage of the amp makes that even, 2nd stage odd and 3rd stage even again, yes?
.
Have Fun and Enjoy the Music
"Still Working the Problem"
nt
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