In article , Leo
writes:
On 29 Sep 2004 18:47:50 GMT, (Len Over 21) wrote:
In article ,
(N2EY) writes:
snip
I can explain how they work in detail. I'll even draw you schematics
of the Southgate Type 7 from memory. (It ain't simple, either). Amazes
shack visitors of all ages and levels of technical ability.
Tsk. You've yet to explain that "Southgate Type 7." [other than the
unusual name] Does it appear in ham literature? In Nobel archives?
Here's a picture, and some technical details...
http://hometown.aol.com/n2ey/myhomepage/
That's it all right. Website's been up about a year IIRC. All anybody has to do
is google my callsign and the url comes right up.
Rig was built in the early 1990s and has been one of the main rigs here since
1994. Cost less than $100, and was built from almost all recycled parts (had to
have 3 crystals made). Tuning mechanism is recycled from a junker BC-221 -
swords into plowshares, as the Book says. Built around some nice 8 pole 500 Hz
bandwidth filters I found at Gaithersburg hamfest. Two cascaded filters
separated by the first IF stage are used. All the heterodyne crystals have
trimmers to permit setting to exact frequency. The heterodyne system is unique,
not copied from any other rig. (Not that there's anyhting wrong with that; the
Type 6 used the Heath SB-series scheme).
Antenna is a W3DZZ-inspired inverted V with the apex at about 37 feet and the
ends at about 12 feet.
Of course the shack isn't always that neat. ;-)
If you look carefully, you can see that the shack table and shelves are
homebrew too.
Several rrappers and thousands of other hams have worked me while I was using
that setup. It's even been on Field Day, where in 1995 I took sixth place in
1B-1 (2948 points, 640 QSOs, all setup, operation and takedown by one person -
me).
The rig has been described elsewhere, both on the internet and amateur
magazines.
73 de Jim, N2EY