It appears that is what will be required. I was hoping to find the exact
resistor to save drilling new holes and such but I don't think that is going
to happen. Thanks to all who provided help and inspiration.
73 Jim
W5JO
You could buy the 25K, use your old clamp to tap at
20K, and the new tap for whatever you need. That would
cut the rating to 40 watts however..
Alternatively parallel the 25K 50 watt with a 100K
fixed 10 watt, and you got 20K with an adjustable tap!
You might be able to just substitute the 20K with a 25K and it would work
fine. Depending on its function in the circuit, the value of a resistor
is often not critical. I made a similar substitution with the voltage
divider in the bias supply of my Gates BC1-T and could tell absolutely no
difference. In older rigs with carbon resistors, some the resistances may
have shifted a greater percentage than that, but the circuits still work
OK.
Don k4kyv
