Sure, try OMRON. They probably still make it.
There website is http://www.omron.com

Both Digikey and Mouser are Omrom distributors.

-Chuck Harris

Irv Finkleman wrote:
Does anyone know where I might find a replacement for
the OMRON relay in the TS-820? It is not the antenna relay
but the one which switches the IF and other circuitry between
transmit and receive.

Irv VE6BP

Chuck Harris wrote:
Sure, try OMRON. They probably still make it.
There website is http://www.omron.com

Both Digikey and Mouser are Omrom distributors.

-Chuck Harris

Irv Finkleman wrote:

Does anyone know where I might find a replacement for
the OMRON relay in the TS-820? It is not the antenna relay
but the one which switches the IF and other circuitry between
transmit and receive.

Irv VE6BP

Hi Irv...

I've searched diligently but have been unable to find a direct
replacement. There is an Omron that is close but will require
some socket rewiring to work. If you can't find it let me know
as I have it written down somewhere. I've got to run off to
work right now and don't have time to look for it.

73, Roger


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Remember the USS Liberty (AGTR-5)
http://ussliberty.org/

I've had to clean mine a few times, and this has restored proper operation.
Assuming your relay
is not damaged, you may want to try cleaning the contacts. I use a small
piece of copier paper, and slide
it between the contacts. You may have to put some slight pressure on the
contact mating surfaces so
that the friction with the paper burnishes the contact surfaces.

If the paper comes out with a dark streak, then you have removed carbon from
between the
contacts. I've had it come out streaked, and clean, but both times it
repaired the relay function.

-- Tom



"Irv Finkleman" wrote in message
...
Does anyone know where I might find a replacement for
the OMRON relay in the TS-820? It is not the antenna relay
but the one which switches the IF and other circuitry between
transmit and receive.

Irv VE6BP
--
--------------------------------------
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Beating it with diet and exercise!
297/215/210 (to be revised lower)
58"/43"(!)/44" (already lower too!)
--------------------------------------
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--------------------
Irv Finkleman,
Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP
Calgary, Alberta, Canada

In article , Irv Finkleman wrote:
Does anyone know where I might find a replacement for
the OMRON relay in the TS-820? It is not the antenna relay
but the one which switches the IF and other circuitry between
transmit and receive.

Digi-Key should have them. Get the gold-plated one.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Hi Irv,

I would have to look at the contacts to be able to make a
true prognosis, but typically if the contacts aren't snagging
the paper (eg, not badly pitted), you can clean them indefinitely.

I would modify Tom's cleaning regimen to use typing paper dipped
in 91% isopropyl alcohol. The alcohol will remove any oils or greases
that might, for what ever reason, be on the contacts.

If the contacts are pitted, then you need to do some more work. Take
an old hacksaw blade, and grind off the teeth, and make the width a
little wider than the contact. Then very lightly grind the flat faces
of the blade to thin it down, and to make fine scratches perpendicular
to the blade's length. Kind of like a very fine file. Don't even think
about using a file, or any kind of sandpaper!

Use this new burnishing tool to polish down the pits. Keep the contact
crowned in shape. When you are done, use compressed air to clean the
metal flake out of the relay, and then clean the contacts with isopropyl
alcohol. You don't want any oil on the contacts.

After you do this, the contacts should be good to go for another 5-10
years.

-Chuck Harris


Irv Finkleman wrote:

I did that Tom, but thanks for the tip. I consider the TS-820, 830, and
520 series to be some of the best rigs ever built. My assessment is based
on my experience as a navy tech for 26 years, and then Sony tech for
an additional 14. The only regular problem I've encountered in these
units has been that darned relay. In every case I've cleaned the relay
and restored operation. I currently run a TS-520S and figure I can keep
it alive as long as I live. I'm not sure just how many times you can
clean a given relay, and wouldn't mind having a spare on hand. I have
encountered other problems, usually just a faulty driver or final tube,
and then usually a result of overdriving -- but those are easy fixes.
What I do like are the circuit boards -- well made and easy to repair if
required. The only circuit board repair I ever had to do on a Kenwood
was a blown regulator which was the result of someone sticking a
screwdriver into the rig and shorting a line!

Enough rambling....

Irv