Hi Dex,
I built the xmitter about 1965 after
reading a an article in an electronics magazine about the Part 15 rules. A
schematic was included using what I believe was a 6AQ5 for the power amp.
So I'm
fairly sure the Part 15 rules for the 160-190 kc band was made prior to
1965.
Reminds my of a 1958 article in Radio-TV News (I think) describing
construction of a CB transceiver using 6AQ5s that I built. Is there any way
to figure out which magazine your Lowfer article was in? A lot of us would
like to get our hands on it for a 'feel' of what was going on back then.
Unfortunately there aren't too many libraries that carry publications going
back that far.
There was another article in an electronics publication about 20 years ago
that I thought described a Lowfer transmitter and receiver (and I told a
number of guys I was searching for it in my boxes of old magazines), but
after finding it, I was disappointed when it turned out to be for the <10kHz
band.
Bill A
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