Phil Nelson wrote:
"GBrown" wrote in message
...

The meter is for the R-45/ARR-7, airborn receiver.


Good eyes! The photo in the Halli book definitely looks like a match.

I wonder if I could use this meter as a sub while I continue the search for
the real thing?

It should work. You would have to create an adaptor so the smaller meter
body would fit in the larger hole, but it would work better than what
you've got now.




According to the book, the R-45/ARR-7 is a contemporary of the SX-28 and
electrically very similar (except for phones-only audio and external power
supply).

The R-45 is essentially an airborne SX-28 with an added zero-gain RF
stage to keep RF radiation levels down to prevent enemy radar from
homing in on the receiver while in use. I have one in the queue and it
looks like it will be easier to work on than a full-blown SX-28.

-Scott




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"Scott W. Harvey" wrote:
It should work.

Yes, it does work, if I reverse the leads to the meter. However, it's too
small, the dial background is white, and it has no pilot lamp. I think I'll
stick with my backwards-working but otherwise functional SX-28 meter for
now, and use this in some other project.

Interesting that the dial face on this meter is as white as new, whereas
SX-28 meter faces all faded to orange-yellow over time, even though both
radios are contemporaneous. Maybe the military specs called for a different
material . . . ?

Regards,

Phil Nelson