[R-390] antenna trim repair

Larry H larry41gm at gmail.com
Wed Jun 20 07:20:00 EDT 2018


Dave, I found this in the pearls antennas section:

Date: Tue, 30 Jan 2001 07:50:20 -0800
From: "Roger L Ruszkowski"
Subject: Re: [R-390] Accessing Antenna Trimmer Cap.
Use a small 3" C clamp for force. Cut a small pin for the punch. Use a nut
or bushing on the anvil side so the pin can slide into it as it comes out
of the shaft and gear. We had a small clamp that had the anvil ground down
and a hole drilled through it in line with the clamp screw. The clamp screw
had been turned down to a smaller dia. than the pin. I think the clamp
screw was a replacement section of thread stock and it had a nice knob on
it. I think, I took one apart once. The problem was not in the can. Now
after 50 years, there could be things in there that need service.
-----------------------------------------------------------------------------------------------------


I like the idea of the modified C clamp.

Regards, Larry

On Tue, Jun 19, 2018 at 7:03 PM, Dave Kirk via R-390 <r-390 at mailman.qth.net>
wrote:

> Did I bath the control in IPA? No but I'm thinking of getting a 12oz IPA
> from the frig, sitting down and contemplating my next move. I do have and
> idea for a homemade tool to press the pin out if all goes well I will
> report back.
>
> Dave
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>


More information about the R-390 mailing list