Tom,
Check the voltages on Q8. When the K2 is powered, you should have 12
volts on the gate and the drain should go to a low voltage.
That in turn should make Q1 conduct.
73,
Don W3FPR
On 8/6/2015 11:41 PM, Tom Field wrote:
Having gotten the side tone situation sorted out, I now find I have no
power going to the KAT 100.
I've checked the plug and voltage on D4, R12, and R11. There appears to be
nothing getting through Q1, I have no voltage on the collector and no
voltage on U8. Bad Q1?
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