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29th August 2005, 08:43 AM
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#11 | |
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diyAudio Member
Join Date: Mar 2003
Location: BEIJING
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Re: Input Capacitor Polarity
Quote:
AC-couple the input is no good(you never know what signal may come out of a source). I might or might not AC-couple the feedback.I like a feedback cap to set DC gain to unity. so,I think you can remove C1,move R4 after R2,use BP cap for C5. Z |
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29th August 2005, 11:10 AM
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#12 |
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diyAudio Member
Join Date: Mar 2005
Location: Cape Town
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The Problem was found!!!!
merely a novice's mistake. I forgot to connect pin 7 to ground when I etched/drew it. Thus there was no reference to GND which let it float which caused what I suspect a DC voltage to apear at the output. Luckily my speaker still works, although its a rubbish one anyway. |
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