Building "The Wire AMP" Class A/AB Power Amplifier" - Page 2 - diyAudio
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Old 23rd July 2012, 02:45 AM   #11
qusp is offline qusp  Australia
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the conclusion was ~2000uf *A I think, plus local decoupling, which we have under control
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Old 13th August 2012, 11:55 PM   #12
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Ok I have been slacking a little but it has been 107 degrees and the local pool has been holding more attraction than the garage. I had Richard at Sum R quote me a price and it seemed to good to be true so I double checked and I was right for a change (of course being right was not in my favor but years of marriage has hardened me). This is what he came up with "one center tap winding as you have listed below Sec # 1: 50 -0 -50 at 7amp.
Sec# 2: 60 -0 -60 at 0.1 amp Price US $ 122/e." \. All of my power supplies up to this point have been with dual primaries and for class a amps. I have been reading some of the power supply threads but have not been able to put it all together what is most practical for this application, any suggestions.

Bill

Last edited by wirewiggler; 13th August 2012 at 11:59 PM.
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Old 23rd September 2012, 03:40 PM   #13
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I will be using an old kenwood power amplifier "KM106" as the chasis. Just about everything but the transformer and heatsinks will be trashed/recycled. I was able to pick up a defective "as is" unit on ebay for $25. I also found some small epoxied 15-0, 15-0 transformers that I can fit inside to provide the boost voltage. The original kenwood power supply was +/- 68VDC. I bought a working KM106 earlier for $50 and eventhough the spec sheet said 135 watts per channel, cliping occcurs around 170 watts. The working KM106 sounded not bad so I left it as is and gave it to my son.
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