[Boatanchors] Morning Fix-It Quiz- RME-45
Joe Connor
joeconnor53 at yahoo.com
Fri Jul 28 23:51:23 EDT 2017
David, I'm trying to picture what you did. Could you post a photo?
Joe Connor
On Friday, July 28, 2017 11:17 PM, Bob Groh <bob.groh at gmail.com> wrote:
Dave, how did you tone down the B+? Would be very interested in details.
Bob Groh, WA2CKY
On Fri, Jul 28, 2017 at 10:10 PM, David Stinson <arc5 at ix.netcom.com> wrote:
> RME-45
> Y'all got it, of course. Someone removed the anti-backlash
> springs. Cleaned the years of gooey from between the gears
> with naptha (lighter fluid). Unlike the TCS anti-backlash gears,
> these seemed to need lube so worked a few drops of light oil
> between them. Used a spring from a "click-click"
> ball point pen. Half the spring on each side seemed just right.
>
> The small reduction-drive gear that engages the anti-backlash
> gear was not worn (probably because the springs were missing).
> A single tooth of backlash compression was enough.
> Once set, I put the tip of a jeweler's
> screwdriver in one of the teeth, gently twist to flex
> the anti-backlash gear and pull the screwdriver out.
> The gears should immediately rebound with an audible "snap."
>
> Sadly, there is a bit of side-side "slop" wear in the
> reduction drive- something I can't fix.
> So there's a bit of "wooble" yet on the highest band,
> but nothing so bad as it was. It's useable now.
>
> Really enjoy this set, especially since toning-down
> the wicked near 400V B+ to something sensible: 220V.
> Cooler and more stable with no apparent loss in
> performance. It can actually hear things on 10 meters.
>
> 73 OM DE Dave AB5S
>
>
>
>
>
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