Re: TR-4CW and TR7 Outcomes?
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Gary I have not had time to work on the TR7 CW issue, But I think I have it isolated the problem to the switch transistor Q1103 as with the base having?9.4 VDC on receive it still conducts some so instead of 10 volts there is a bit over 5 volts but that is enough to power up the oscillator etc. Guess I am going to have to try and put in some different transistors. It is such a simple circuit it is hard to find the problem.
Jim VE1RB
On Sat, Mar 29, 2025 at 3:30?PM Gary Follett via <xntrick1948= [email protected]> wrote: What ever became of the TR7 with issues on the IF/Audio board causing it to be stuck in transmit?
Also, wha became of the TR-4CW that had the problem with momentarily going into CW transmit than dropping out?
Also, what happened to the TR4-xxx that \had the mouse chirp on power down?
It would be nice to close the loops on these.
Gary
W0DVN
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