The FT-817 PA seems to be prone to overheating.
I have been running the 817 on 13.8V till now, and since it runs fine down to about 9V, I am thinking of finding a 10V regulator to take some heat out of the equation.
Will be looking for a 7810 IC, or possibly using the LM317 for that purpose.
More soldersmoke coming out some time here.
Another Blast from the Past -- Dino KL0S in the early 70s -- A Turner mic,
a Vibroplex, an HQ-100, a DC receiver, and a tech library.
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*Dino: Yes the parallels are really eerie OM. There is that Turner mic.
I still have mine too, but I had to replace the element with an Electret.
Mine ...
1 day ago
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