A friend had a similar problem. ?
The base & emitter voltages around Q13 were around 1 volt rather than 3.7v (base) and 3.1v (emitter). ?We fixed it by replacing Q13. ?If you're careful you can use a leaded transistor as the replacement.?
Described at?
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| | | | A repair of a 'no power on transmit' fault suffered by a friend's Bitx40. | |
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