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,
Bill
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On Wed, Jun 30, 2021 at 12:19 PM Mark - N5OT <r-emails@n5ot.com> 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
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