[AMRadio] Re: 500 Kc (was Re: 450T amp)


crawfish crawfish at surfmore.net
Thu Jun 14 23:00:42 EDT 2007


I worked on some old AM radios with 470 kHz IF's. Everything today is 455 or
in cars, 262.5 kHz. It is nice when people standardize things.
                                                                        Joe
W4AAB
----- Original Message -----
From: "Rick Brashear" <rickbras at airmail.net>
To: "'Discussion of AM Radio in the Amateur Service'"
<amradio at mailman.qth.net>
Sent: Thursday, June 14, 2007 6:32 PM
Subject: RE: [AMRadio] Re: 500 Kc (was Re: 450T amp)


So right you are Joe.  Back in the early 60's in a lab workshop we built
AC/DC Superheterodyne receivers with 465 mc IF's.  Our instructor was always
on the edge of tradition.

Rick


I bought some crystals not long ago, and I think I have 465. I remember some
radios had IF's at 465 and 470. Of course, car AM radios are standard at
262.5 kHz.Our county did have GZS at the local airport on 375, but it is not
running anymore. I have a crystal for that, too.Maybe I should see what
happened to the transmitter so I can get something on 500 kHz band.Got 5
acres for antennas!!
                                                                      Joe
W4AAB

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