[ARC5] Transmitter Woes

[Geoff]

Where possible I solder the variable cap wipers to the frame at their 
mounting rivets or where they loop over the frame.

This is one of the few places Ive found DeOxit to be actually useful, right 
at the wiper-rotor junction.

Many radio manufacturers started soldering those spots in production, during 
service, and via bulletins.

Carl


----- Original Message ----- 
From: "David Stinson" <arc5 at ix.netcom.com>
To: "ARC-5 List" <arc5 at mailman.qth.net>
Sent: Saturday, October 05, 2013 7:16 PM
Subject: [ARC5] Transmitter Woes


> Just another reminder to check the transmitter variable
> capacitor stators-  there is a little metal strip press-fit on the end
> of the stators to which the wires are soldered.  Many of these are 
> beginning to get Hi-Z between the strip and the stator.
> Oxidation builds-up between the strip and the stator posts.
> A hot soldering iron (with care not to melt the little plastic
> mounting balls) on one of the posts to the strip will fix it.
> I've also begun to find this in the receiver variable caps,
> including one that had a Hi-Z junction between two of the plate spacing 
> washers that mount the rotor plates.
> I fixed that with a jake-leg spot-welder.
> These vets are showing their age.
>
> 73 DE Dave AB5S
>
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1432 / Virus Database: 3222/6225 - Release Date: 10/05/13
>