[Amps] 811H pops fuses

[Tom Osborne]

Hi Bill

I took the caps out.  Two of them looked like they should - put the VOM 
across them and the needle deflected, then slowly came back on the VOM.  The 
other two went to zero ohms and stayed there, no matter which lead went 
where.  73
Tom W7WHY




ORIGINAL MESSAGE:          (may be snipped)

n 1/19/2014 7:46 PM, Tom Osborne wrote:
> Well - found the problem.  Got 2 shorted filter caps.

REPLY:

Not wanting to second-guess you Tom, but that's a little suspicious,
although not impossible.

First are you sure they are shorted? Did you disconnect everything from
them so they are "floating"? And second, what is the actual ohms
measurement? Even a good electrolytic will not show an open circuit.
There is always some high value of resistance.

I spent 20 years troubleshooting things with electrolytic caps in them.
It's easy to be fooled. Been there, done that.

73, Bill W6WRT

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