On Mar 9, 4:10Â pm, Dave Heil wrote:
wrote:
On Mar 5, 3:20� pm, Dave Heil wrote:
wrote:
On Mar 3, 2:40�pm, Michael Coslo wrote:

Gotcha, Jug!

Marcellus? Is that you?

Complete with insignia!

Almost time to put the blue sweaters away.

There's no one who can reduce a waste stream
like West Africans. Â The
seams in Coke cans are opened after the tops
and bottoms are removed and
the cans are rolled flat. Â The become roofing material
or house siding.
Black trash bags are washed and recycled. Â Pop bottles
become water
bottles and used 55-gallon drums (previous contents
unknown) are used
for making palm or cashew wine.

Except for the reuse of possibly-contaminated 55-gal drums it all
sounds good.

The dial drum of the Southgate Type 7 was made from a piece of 6"
diameter plexiglass pipe. It was thoroughly cleaned and about a 2"
long section cut off. A disk 6" in diameter was then cut and the pipe
solvent-welded to the disk using Duco.

The neutralizing-adjustment disk from a BC-375 tuning unit was then
bolted to the bottom so that the dial drum could be mounted on an
extension of the tuning capacitor shaft.

The dial drum is viewed through a Plexiglas window. A piece of paper
wrapped around the drum was calibrated using an LM frequency meter,
then a good copy drawn using a CAD program. The good copy was printed
on translucent Mylar and put on the drum.

A lampholder/reflector assembly is mounted inside the dial drum, with
two pilot lights so the whole thing is illuminated.

You want a Southgate type number for it?

I think that'd be appropriate.

Indeed! I will speak with Engineering Documentation about it.

The upright case has a full metal cover, space for a cooling fan and a
shelf which can hold the rectifier board and electrolytic caps. Â The
bottles aren't U.S. types, they're Phillips equivalents with graphite
plates. Â They should hold up for a long time. Â I'll use Chinese
Coleman-type lantern chimneys.

There's a good discussion over on eham about high power tubes,
gettering and other issues. Unlike receiving tubes with their shiny
flashed getters, high power tubes often use the anode or a coating as
the getter, and need to operate at high temperature to work.

Lots of good info out there free for the download. W5JGV's site has
info from Eimac, RCA, Taylor and other tube makers. Not just the usual
number and data but application notes, recommended practices, etc.

Yes, but they want you to *buy* the stuff! My adapters
were made from
scraps.

Some of us would have to buy stuff in order to have scraps.

Bwaahaahaa

 I've found
that the hobby shop stuff is not terribly expensive. Â They also have
round, square and sheet plastic stock. Â Some is clear and some is
translucent--ideal for making dial scales.

See description, above. I gotta take more pics...

Exactly. Wood prices have changed, though; today
a tabletop might be
AC plywood.
Depends what's on the cull cart.

I don't have a place with a cull cart. Â I've sometimes bought
ugly-looking plywood and topped a desk with vinyl floor tile. Â If you

want to fancy one up, hardwood veneer isn't too pricey.

Don't want fancy. Want functional.

Thursday there was the remains of a packing box for some new furniture
by a dumpster near here. The box was corrugated but the base was nice
2x4 and 1x6, nailed together. Cut off the corrugated and saved the
wood.

The former belongs in a museum, the latter in a home.

Not everyone lives like us, Jim. Â Some folks have houses
large enough to
be homes *and* museums and the wherewithal to populate
the place with
both types of antiques.

Yep, you're right. Particularly around here!

 I can appreciate antiques as art but we don't
have enough room for antiques we can't put to use unless
they happen to
be art for the wall or items which can sit on a table for
the most part.

Same here. All about multiple uses.

You're a lightweight! Â My main operating position is representative
of
overkill. Â The frame is 2x4's; the legs are 4x4's and the top is a
hollow core door. Â There's a two shelf console with two angled
wings,
with enough roof under the first shelf for solid-state brick
VHF/UHF
amps, keyers, paddles, DVK and the like.

For me that frame is overkill but the hollow-core door is underkill -
not strong enough.

Did I mention the six foot rack to my right?

I've had table racks but always wanted a six or seven foot floor rack.
My old Handbook has plans for a wooden one...

I did one table with a hollow core door many years ago (it was
free)
but they are too flimsy and too expensive for TSS approval now.

They hold up well with the 2x4 frame and 2x4 bracing.

Yes but that's not the issue. You can punch right through the surface
with something sharp and heavy enough.

The shack table in the website picture was designed for Field
Day use,
25 years ago. The top was the maximum size that would fit in
the back
of a VW Rabbit with the rear seat taken out. All the legs and
braces
are bolted on in such a way that the whole thing breaks down
into one
package. Does the job for now but a replacement is in the
works.

Mine will break down too, but I don't think it'll fit in a Rabbit. :-)

Less than 10 minutes to set up or take down, no tools needed. It's all
about multiple uses. No card-tables on FD for me.

73 de Jim, N2EY