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Date: Sat, 05 Aug 2006 23:22:03 -0700
From: Scott Tilley <sthed475@telus.net>
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Subject: Re: LF: Amp led on
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Status: O

J.

by high impedance I mean that a wire is likely broken off leading to a 
gate input in the logic resulting in an active state...

Check you wiring and operation of the logic...

Scott


J. Allen wrote:
> Scott,
>
> I am sorry that it is necessary for you to repeat things to me.  My 
> memory has improved, but still has holes in it.  For some reason, I 
> keep re-solving the problems instead of remembering the correct 
> answers.  Please bear with me, and I am sure that you will be able to 
> guide me to a working amp at 1W ierp.  I just hope it happens before I 
> drive you nuts.
>
> Ok... first, I need to get your amp going  and get the new problem 
> worked out of the overcurrent circuit.  The newly wound output 
> transformer did not get a chance to transmit today. The transmitter 
> was powered up by first turning on the 5 and 12 Volt auxiliary 
> supplies, and the LED immediately came on, so the FET supply was left 
> off until I can find out what is wrong there and fix it.
>
> You mentioned that noise could be causing the overcurrent circuit to 
> act up. Should I try putting bypass capacitors to ground on the 5 and 
> 12 Volt inputs?  This may reduce possible noise from the power supply 
> lines.
>
> When the amp works into the dummy, the tap is adjusted for 100 Watts 
> output, or else I drag out a blanket with which to make smoke signals.
>
> Thanks...
>
> J.
>
>
>
>