[Collins] 32S-3 advice needed
JAMES BRANNIGAN
jbrannig at optonline.net
Mon Dec 21 19:13:26 EST 2009
I duplicate the voltage and resistance charts in an Excel spreadsheet.
For each tube/pin I insert a cell for the measured value and another for
the difference.
The difference cell contains a formula to display the difference as an
absolute value.
If the difference is greater or less than a stated percentage i.e. 20%,
the cell presents in red.
If all the difference cells are referenced to one "percentage" cell,
various percentage differences may be tested. The red color makes it
easy to spot
potential problems.
Jim
>
> Take the time using a DVM and measure every resistor. The value
> should be equal to the specified value or lower. Never higher!
> Typical of 2 watt and 1 watt carbon resistors is to migrate up in
> value. A second approach is to measure voltages on every pin of
> every tube. They should be within 10% to 20%.
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