[Top] [All Lists]

Re: [Amps] Cleaning open frame TR relay

To: Mark - N5OT <>
Subject: Re: [Amps] Cleaning open frame TR relay
From: William Miller <>
Date: Wed, 30 Jun 2021 13:16:47 -0400
List-post: <>
I ran into the same situation.

My technique was to use a strip (cut to the width of the contacts) of heavy
80 lb paper about 1.5" long, and secured one end of it to a hemostat.
I "soaked" the loose end of the paper with DeOxit and lifted the relay arm
with a dental pick to insert the wet strip between the contacts.
I was only able to "pull" the paper in one direction so multiple passes
were needed to satisfy myself that the contacts were clean & corrosion free.
I also changed the paper strip 3+ times for each of the 3 contacts that
needed cleaning then ran dry strips to remove any excess DeOxit.

Radio has been working FB for a couple of years now & I have not had any
further relay contact issues to date.

Hope this helps,


On Wed, Jun 30, 2021 at 12:19 PM Mark - N5OT <> wrote:

> What's the best way to clean the contacts of an open-frame TR relay?
> I'm hoping to just clean the relay without disassembing the amp, but the
> contacts are a little hard to get at.
> 73 - Mark N5OT
> _______________________________________________
> Amps mailing list
Amps mailing list

<Prev in Thread] Current Thread [Next in Thread>