[Hallicrafters] re: urm-25d

[JFran10657 at aol.com]

Hi Roy
It was me who asked the question.
Lots of advice and lots to think about.
I have checked the attenuator both opened and closed.
First indication of failure was a reading of 3 megs at pin 1 on v104, it 
should be 550r.
Removal of the atten revealed an over heated r141(55r), measured about 3 megs.
According to the manual there should be .1volt output with the atten on x10k, 
I measured
170 mv with my dmm or .17volt. Thats as far as I've gotten.
I was thinking of applying a variable dc voltage high enough for the dmm to 
read the output 
and then calculate the attenuation.
Does this sound reasonable or just wishful thinking.?


regards and best
Jim ka2zuu


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