[Elecraft] K3 - no output power
Keith Trinity WE6R
keith at elecraft.com
Mon Mar 29 12:43:13 EDT 2021
Just some notes for future folks reading this.
I always replace D1 and Q6 together.
Other notes re Q6 and D1;
1. Poor RX on 24 and 28Mhz 12m 10M only and TX gain is OK. Q6 a 2N7002,
OR D1 on the LPA can Suck the RX down on these two bands!!
2. Slow ramp up of TX power output. Typically worse on higher frequencies.
This can be D1 E560040 burnt (or bad solder joint) and/or bad Q6 E580026
on LPA. (power ramps up starting very low).
3. If Q6 shorts, it can take out Q3 E580030. **REPLACE D1 *and* Q6 if
the solder joint is bad!!!
Keith WE6R Elecraft K3/K4 Tech
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