Hi,
When I built my K2/100 the threshold adjustment didn't go right, I turn
trimmer R1 full CCW to get 3.74v on pin5 of U2 (full CW pin 5 goes to 2.6v).
This adjustment is supposed to swing U2 pin 5 fom from 4 to 8 v. I checked
diode polarity, resistor values, everything but never did find the problem.
Now I'm building another K2 and have encountered exactly the same result.
Anybody got a clue?
73,
Jim
Jim Stoneback
K4AXF
Drake SW8
K2.ssb.100 sn 6194
K2 sn 6263 (underway)
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