Good Morning Group,

4991 seems to be coming along nicely, but I have a question.

I have finished the Front Panel Board.

I added the "extra" components for KSB2 per instructions on page 28.

1.  Resistance checks for U1 pins 1 & 2 are out of spec.  Chart says 25 - 35
K for both pins.  DMM reads 17 K for both.  Old analog meter reads 8 - 9 K
for both.

2.  Resistance checks for J1 pin 15 is out of spec.  Chart says 10 - 60 K.
Analog meter reads 80 K.

Perhaps the resistance chart does not take the added SSB stuff into account?
U1 pin 1 and J1 pin 15 are both associated with this added circuitry.

Ya think I'm OK?

TIA,

73,

Tom, W3QS



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