Sargent-Rayment built what was considered the best commercial AM tuner
ever made in the early-mid 50s using a unique circuit that may be
found in the RDH3, I think...they put a huge engineering effort into
what was unfortunatley a dying art, they'd been building TRF and SH
radios for the military & commercial markets since the 20s...Audio
said it was the only AM made that approached FM quality - see the
upcoming article in Vacuum Tube Valley #20, coming out soon...
Roger in NY


" Uncle Peter" wrote in message news:UwmPa.53$zd4.5@lakeread02...
"Robert Casey" wrote in message
...
John Byrns wrote:


Yeah, the heathkits are better receivers than the EICO HFT-94, although
they both suffer somewhat from the edgy sound of semiconductor diode
detectors.

I have a BC-1A myself, and it uses semiconductor detector diodes. I
suppose I could
remove them and sub a tube like a 6110 or similar sub mini tube with
wire leads under
the chassis. It's sitting in storage right now, so it will be some time
before I can
do that....

Stupid question, but would there be any advantage to using a cathode
follower to drive a diode detector?

Pete