juniorhifikit
Well-known member
Question about series/parallel power transformer circuit. I've seen this on a lot of my gear, and did this on my SSL clones, but it's been a while since I wrapped my head around it. This is the circuit from a Hafler amp power supply:
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My question is, do I need to keep R124 and R125 (which are there for the 110v mode) and ADD R126 to get 220v; or do I remove them and use ONLY R126; or do I jumper across (short) R124 & R125 for the 220? It seems like with NOTHING at the R124 & R125 position, there's no circuit. Any insite would be greatly appreciated!
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Insert image:
My question is, do I need to keep R124 and R125 (which are there for the 110v mode) and ADD R126 to get 220v; or do I remove them and use ONLY R126; or do I jumper across (short) R124 & R125 for the 220? It seems like with NOTHING at the R124 & R125 position, there's no circuit. Any insite would be greatly appreciated!
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