The little units are 24V relays. Keep the relays and their sockets. Pitch
the rest.

RellikJM

"Ignoramus3395" wrote in message
...
On 21 Mar 2005 03:53:51 GMT, Ignoramus28076
wrote:
I have a power supply for some military surface to air unit that
originally cost $87,000. As far as I could tell, it is worthless and
cannot be sold on ebay. It has a lot of specialty connectors. This
thing is about 25 lbs or less and is not that big. It has a lot of
little similar semiconductor units inside, which, as far as I could
tell, are also worthless.

Photos:

http://igor.chudov.com/tmp/Navair-Power-Supply/

i

Ignoramus14288 wrote:

On Mon, 21 Mar 2005 23:33:46 -0700, RellikJM GO@SPAM wrote:
The little units are 24V relays. Keep the relays and their sockets. Pitch
the rest.

Is there any way to find out what the relays do? Where are the "coil"
contacts and where are the NO or NC contacts?

Err, the label on the top of the relay cases tells you which are the
coil pins and which are NO, NC.

If pins are
1 2 3 4
5 X 7 8
9 A X C
D E F G

Then coil is 3 & E
7 is NC to 5 & NO to 1
1 is NC to 4 & No to 8

and so on.


Caveat, I'm not wearing my glasses.

"Ignoramus14288" skrev i en meddelelse
...
On Mon, 21 Mar 2005 23:33:46 -0700, RellikJM GO@SPAM wrote:
The little units are 24V relays. Keep the relays and their sockets.
Pitch
the rest.

Is there any way to find out what the relays do? Where are the "coil"
contacts and where are the NO or NC contacts?


http://igor.chudov.com/tmp/Navair-Po...y/dscf0095.jpg

Coil is X1 + X2

the relay in the pic has 4 sets of contacts..

A1 is NO
A3 is NC
A2 is the other end of A1 or A3

Same thing with B, C and D sets..

Coil specs:

26.5VDC, 150 ohms.. It will probably run fine on 24VDC

/peter

In article ,
RellikJM GO@SPAM SOMEONE ELSE.COM wrote:
The little units are 24V relays. Keep the relays and their sockets. Pitch
the rest.

Agreed -- except also be sure to keep the hardware which mounts
the sockets and accepts the screws from the relays, too.

Those are top-quality relays, and usable even in space (since
they have a sealed environment, so they won't have a problem with vacuum
welding of the contacts.

The two large boxes near the rear are the only power supplies in
there, and it looks as though they depend on the chassis for
heat-sinking, based on the smear of heat-sink grease (the white stuff)
around the base of one.

Enjoy,
DoN.

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