[R-390] TIRED OF READING ABOUT CARDBOARD SPEAKERS

[Cecil Acuff]

What I do know is don't lube the gear train on an SP-600.  Clean it really 
good and maybe lube the contact points where shafts go through bushings but 
be sparingly with the lube.  The drive design can't tolerate any lubricant 
of any kind.

Cecil....
----- Original Message ----- 
From: <DJED1 at aol.com>
To: <chacuff at cableone.net>; <r-390 at mailman.qth.net>; <kf4yio at charter.net>
Sent: Saturday, January 14, 2006 1:27 PM
Subject: Re: [R-390] TIRED OF READING ABOUT CARDBOARD SPEAKERS


> I've got a bit of a problem because my wife has her own ideas on winter
> projects.  I'll be rebuilding a bathroom for her, so my radio list has to 
> be more
> modest:  I want to try and fix the warble in my Progressitron PTO  and put 
> it
> back in the radio, then set up a jig to calibrate the Cosmos.   I've done 
> it
> in the radio a couple of times, but my hands and eyes get awfully  tired
> working in tight spaces.  My concern is that if I want settability of  100 
> cycles
> on the PTO, I need a fixture that will read out accurately to a small 
> fraction
> of a degree.  After that, I want to clean and lube the geartrain  in my
> SP-600.  Anyone know of a reference to tearing down the geartrain on  the 
> SP-600?
> Ed
>