IM-18 problem

[James True N5ARW]

Sounds like a leaky coupling cap.  I don't have a schematic
for the IM-18.  Look for caps that connect the plate of one
stage to the grid of the next.

Good luck

73
James True N5ARW
in beautiful Hot Springs National Park, AR
http://www.boatanchor.com

On Tue, 7 Aug 2001 08:49:20 -0500, Harley L. Miller wrote:

>I have an IM-18 VTVM with an attitude problem. When it is switched on,
>the meter needle pegs to the right or left, depending on the polarity
>setting. It does this on all voltage functions. The adjustment pots
>have no effect on the problem. I have changed out the tubes with known
>good ones, to no effect. I have cleaned the switches with DeOxit5, to
>no effect. Any ideas?

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