Re: BITX40 Transistor Voltage Measurements


Ion Petroianu, VA3NOI
 

I can confirm Randy's results, except for Gate of Q15. Mine is only 4.3V, but that is maybe due to my adjusting the idle current to exactly 0.1A.

All other measurements are within 0.1V error, that can be a meter issue or small variations due to component tolerances.

The method and conditions of measurements are the same the same (GND at power jack, power at PWR1 (not PA PWR, 13.7V in receive, 13.6V in transmit)
--
Ion

VA3NOI

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