Question for Pete G.
Hi Michael,
I haven't seen those things for years. I will end up taking your approach
when I finally do the redesign. I remember the old
Pepperdyne modification to the 75A-4 receiver that was featured in Ham Radio
years ago. I still might have that magazine laying around.
I finally got through with my old S&S Engineering digital display tonight.
Some of the LED segments were flickering, so I removed all of the IC sockets
and soldered all of the ICs in directly. Same thing with the DIP switches
for the programmable offset. They became intermittent, so I removed them and
used jumpers to hardwire the desired offset.
Pete
"msg" wrote in message
...
Pete KE9OA wrote:
Right now, I am working
on a redesign of my R-388. I am going to convert it to a solid state
unit. I have enought dual-gate MOSFETs laying around, at least to
complete the modifications.
snip
Do you have any FETRONS on hand? There was a rather broad line of tube
types available in this form for quite a few years. I tried to
duplicate that line using discrete parts mounted on old tube bases and
had some success.
Regards,
Michael
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