I just sorted my Bitx 40 put with no TX. One problem was me as I just forgot to connector the 12 volts to the PA but that was not the end of it. Still no TX. I tracked it back to the bias pot. 5 volts at the input but no volts at the wiper. But after moving it from one end to the other several times it started to work correctly. I then

Set the bias current to around 300mA and now I get 1.5 watts of RF with a continues 1.5khz tone at the mic input.

Others have reported 3 watts but it will do for now until I get the tuning clicks sorted.

Paul  

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