[Hammarlund] SP-600 Whazzat!

Thu, 1 Jan 2004 11:30:58 EST

That would be my guess Al. I've seen the usual attempts at a fix, rubber 
bands, o-rings too. Most all problems are caused by someone putting oil or grease 
on the gears and it slopping onto the friction idler and the edge of the 
logging dial. I use alcohol and clean everything real good, for extreme cases, I 
have used ammonia (yeah, I know some say it will cause problems with the brass) 
but, never experienced any problems. The cure is to get it clean and dry!

Les Locklear
SP-600 Historian
http://www.hammarlund.info/

In a message dated 1/1/2004 9:58:33 AM Central Standard Time, 
[email protected] writes:
Hi Andy,
    I'd suspect that it was some unhappy owner with a lathe who did it,
rather than the factory.
    You and Les together have probably seen more SP-600's than anyone in
recent history.  If Les hasn't ever seen one, and this is the first one
you've seen, it's probably one of a kind.  I've seen a few SP-600's too,
but not a plastic idler.  I think I've heard of attempts to "fix" the
problem by putting a rubber tire on the wheel, or some such  (didn't work
long, if at all).  The contact pressure at that point is extremely high
due to the wedge effect.
    I hope the rains out in your area aren't causing slides.
73,  happy new year,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info

----- Original Message ----- 
From: "James A. (Andy) Moorer" <[email protected]>
Arright, folks, this is a new one on me:
You know the little grooved brass wheel that goes between the big weighted
brass wheel on the tuning shaft and the vernier dial? It is about the size
of a very thick quarter and slides on a small shaft affixed to the front
panel.

Well, I got a receiver where that wheel is plastic! Not just plastic, but
soft plastic, like 50's baby dolls were made of. It is *exactly* the same
shape and size of the original brass wheel, down to the beveled edges.

Anybody ever see or hear of anything like that?

I hypothesize that they got so many complaints about the brass wheel
slipping that they tried a plastic one, but probably quickly discovered
that
the plastic one wears out quickly and went back to brass.

The one I have is so worn that it couldn't turn anything.

James A. (Andy) Moorer
www.jamminpower.com

(by the way, Happy New Year!)

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