"sparky" wrote in message
...
On Jun 15, 6:35 pm, "DaveM" wrote:
"N_Cook" wrote in message

...





Remove _ for valid address wrote in message
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On 2008-06-14, N_Cook wrote:
...
The vibrator had obviously been removed at some point (putty-stuff is
split)
in the past. what to look out for when testing these and how to remove
that
putty-like goo if necessary, warming with hot-air?. I assume test with
load
attached but what to do if a problem within the vibrator.?
...

I doubt there's much chance of finding a replacement vibrator these
days, if its contacts have gone. I wonder if anyone has come up with
a design for a solid-state (plug compatible) replacement?

Mike.

I have some schema for similar Ekco CR... radios and the vibrator would seem
to contain a valve or 2 inside as well as coil and bell-mechanism.

If you can get inside the can , do they have oil or anything inside ? under
that goo would there be a contact adjustment aperture ?
A long time ago I seem to remember trying to deal with one where the contact
make-break was very irregular and I never could make it work properly

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

There are no adjustments inside a vibrator. No oil. The "putty-stuff" that you
saw is likely to be an asphalt or tarry substance used to seal the mechanism
from outside air. Vibrators were purged and filled with nitrogen to reduce the
possibility of oxidation of the contacts.


Many vibrators have adjusting screws inside them.


Yes.. absolutely correct.. Been so long since I've been inside a vibrator I
had forgotten.

--
Dave M
MasonDG44 at comcast dot net (Just substitute the appropriate characters in the
address)

Experience: What you get when you don't get what you want