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Old 21st July 2011, 10:49 PM   #11
DF96 is offline DF96  England
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It would have been helpful and courteous to tell us from the beginning that it was a new DIY build. Fault-finding depends partly on context, which you did not disclose. Debugging a build and fixing a previously working item are not the same thing, because different types of fault are likely to occur.
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Old 22nd July 2011, 12:57 AM   #12
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Quote:
Originally Posted by DF96 View Post
It would have been helpful and courteous to tell us from the beginning that it was a new DIY build. Fault-finding depends partly on context, which you did not disclose. Debugging a build and fixing a previously working item are not the same thing, because different types of fault are likely to occur.
My humble apologies! I need to develop better board ethics!!
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Old 22nd July 2011, 01:09 AM   #13
llwhtt is offline llwhtt  United States
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DF96,

I tried telling that to someone on the PASS forum, he had built an A40 and had a bad channel, forgot the particular problem. He had one good channel to troubleshoot with but kept asking what would cause this problem. I told him troubleshooting a once working amp is totally different than something he built and NEVER worked. I don't think he cared for that, never saw him again on the forum.

Craig
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Old 22nd July 2011, 08:21 PM   #14
DF96 is offline DF96  England
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Originally Posted by denny9167
My humble apologies!
Accepted.
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Old 22nd July 2011, 09:26 PM   #15
kevinkr is offline kevinkr  United States
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Originally Posted by denny9167 View Post
I apologize folks,I was leading you astray. It was a screw-up on my part. By the way in case your wondering this is a NEW build. Theres nothing wrong with the cap,I mistakenly mis-wired the take-off socket. the wire was supposed to be soldered to pin #4 and the 22K resistor,was soldered to pin #3 by mistake,which would take the current through the 10ohm resistor straight to ground.
Oops, yep that will do it.. Good catch..
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Old 22nd July 2011, 09:35 PM   #16
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Oops, yep that will do it.. Good catch..
You have that right!!! If I only double checked my work I would have discovered it,and this post wouldn't have been nessessary. All is good now. This jewel of an amp seems to be working the way it was designed to do,my hats off to Mr. Hafler,and Mr. Laurent for designing some great products!
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Old 22nd July 2011, 09:55 PM   #17
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Here are some picks,biasing nicely!
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