RadioBanter - View Single Post - Interested in high-performance tube-based AM tuner designs

June 10th 04, 08:23 PM

In article ,
says...
wrote:
Jon Noring wrote:

Well, being the "OP", I want a high-audio performance, modern
design AM tuner to integrate into my audio system -- and I believe
a lot of tube-o-philes likewise want that -- but not everyone
obviously. There are several reasons why most higher-grade audio
systems use separate components, the reasons of which are obvious
to most everyone. The AM tuner is no different than other audio
components in this regard.

Maybe what you want is the old JW Miller passive AM tuner. No
active devices at all, just a bunch of tuned circuits and a detector
diode.

Yes, possibly. John Byrns has written about the J.W. Miller TRF AM
tuner quite a few times
Back in the 70's I built a passive diode detector receiver for the
broadcast station I worked for. The transmitter was only a mile away.
It was flat out to 10 KHz, and we used it for a line-level signal that
was usually used for the control room monitor speakers. We could A-B the
line out going to the transmitter and the received signal. It was good
for understanding how the audio limiting at the transmitter was
affecting different kinds of program material.

--
Regards, Terry King ...In The Woods In Vermont

"The one who dies with the most parts LOSES! What do you need??"