Recently a member mentioned improvements
that were made to his Ramsey AM-1. I
believe it had to do with the modulation scheme.
I have had an AM-1 for 20 years. Although it
is not the greatest thing in the world,
I think it is a fantastic unit for learning
about radio transmitters and Amplitude Modulation.
After my recent move, I found my AM-1.
After modifying it for crystal control, I wound a
gigantic loading coil on a bucket and got it to
go 1/2 mile. (This was years ago.)
I did a bunch of other things. I had crystals for
1590, 1670, and 1700 kHz.
It was a ton of fun.
It sat frozen under a bucket under a snow bank
for a whole winter. It was fed by audio and power
cables that went through the yard from the indoor
set-up.
I don't believe it did 100 percent modulation, which
of course was a problem, but I learned a great deal.
This was way before other transmitters, such as
the "Talking House," or AMT-3000 were available -
even before the Ramsey AM-25.
I am trying to put mine back on air just for fun.
(I have other AM transmitters, too.)
As mentioned, we moved a while back, and I don't
have a "workbench" yet.
Brooce, DOGRADIO and all sorts of other Part 15 experiments.