[Boatanchors] 160 Meter AM Question

Todd, KA1KAQ ka1kaq at gmail.com
Thu Jan 25 11:25:56 EST 2007


On 1/24/07, Rodger <WQ9E at dtnspeed.net> wrote:
> Ed,

> high powered AM rigs that was built with 160 coverage since rigs like the
> Johnson Desk and 500, Collins KW-1 etc. do not have 160 coverage.

*BZZT* Not entirely true. The Johnson rigs don't cover 160, but the KW-1 does.

Ed, why not get a nice old broadcast transmitter and use it on 160?
They are indeed commercially made (higher quality than most amateur
rigs), require minimal work for 160 use, and are built to run 24/7.
The older models from the Collins 20V series back are the most
attractive, many having display windows in the PA to allow you to
monitor tube color. Some allow you to see even more, like the 1940s
Collins 300G. Old RCA, W.E., Gates and others are out there being
scrapped regularly for lack of interest. Most are single phase, 230
volt as well.

The best part next to great looks and durability is the price - often
free for the taking when a station wants their back up transmitter
gone. Others show up already converted and ready for 160, in the $500
+/- range. You can set them up for crystal control or use a remote VFO
with a bit of work.

They're certainly not what you'd call 'table top', and aren't for
everyone, but there's nothing quite like having some real iron on 160
AM. Here's a shot of the 300G used at the museum station W3R during
the 2005 Heavy Metal Rally in January 2006:

http://www.hamshacks.com/gallery/home/DSC02203

A lot of transmitter for 250 watts, but it sure screams 'RADIO'!

~ Todd,  KA1KAQ


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