Bill - I believe I did the same thing to my BITX40 as, now when I flip the switch to transmit, it stays in the receive mode, but the frequency shifts slightly. No sure if the relay switches or if I blew the PA final. Receiver is fine, like your receive. I thought I may have left the radio in transmit mode when I switched off the volume control pot overnight ?(as I had planned to keep the radio powered on) but now believe that the issue may have resulted from using my TS-480 in transmit to locate my BITX40 frequency. Have been hoping to see Farahan's "troubleshooting the BITX40 transmitter" YouTube video, but I guess it still is "in production." If you receive any feedback on correcting your transmit side issues of the BITX40 could you please share this information with me? I ordered the IFR510 and 2n2219a from W8DIZ, but I hope to identify the issue before replacing the parts, if their replacement is even required. 73 ?and tks. W4USF - John - Lutz, FL.
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On Dec 31, 2016, at 07:07, Bill Kittilson
bill@... [BITX20] <
BITX20@...> wrote:
?
I managed to kill my bitx40. It was working great until I decided to tune up the big rig. I can still receive. No power at all on transmit. I replace the 510 transistor. Sill no output. The current does jump up to over 1 amp when I switch to transmit.
Any idea what to look at next?
