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Hoffman Amps Forum image Author Topic: Hoffman Stout low output?  (Read 1865 times)

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Offline Oddvar

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Hoffman Stout low output?
« on: September 27, 2016, 09:11:48 am »
Hi. Just finished my Hoffman Stout 18w.  It works, but the output is very low, like a 2 watter almost.  Any suggestions on where to look for the problem.  I have gone over it a few times, but it seems ok?

Offline shooter

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Re: Hoffman Stout low output?
« Reply #1 on: September 27, 2016, 09:34:09 am »
since you have something to compare, start there, your volts vs the original stouts.  I like to start at the power rail, then move to V1, right til the PA.  Since dougs original works fine, find the component value that's off, the wire that's wrong and walla, jamming.  Take your time, this is the fun part, like playing the old game CLUE :laugh:
Went Class C for efficiency

Offline Oddvar

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Re: Hoffman Stout low output?
« Reply #2 on: September 27, 2016, 02:48:12 pm »
Found the mistake.  I had forgotten to link pin 4 and 5 on V2-

Thanks anyway...

Offline shooter

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Re: Hoffman Stout low output?
« Reply #3 on: September 27, 2016, 06:50:48 pm »
easy as pie, now even more fun making the neighborhood dogs howl!
Went Class C for efficiency

Offline EL34

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Re: Hoffman Stout low output?
« Reply #4 on: October 04, 2016, 08:41:59 am »
Guys,
That's why we have this post
http://el34world.com/Forum/index.php?topic=19361.0

And the lovely diagram that shows you how to trace out your build using the layout diagram


Offline kagliostro

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Re: Hoffman Stout low output?
« Reply #5 on: October 04, 2016, 08:56:11 am »
Quote
............. now even more fun making the neighborhood dogs howl!




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Franco
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