UNTESTED Vintage Boonton 42A RF Microwattmeter Power Meter w/ Detector Cable

UNTESTED BOONTON Model 42A Microwattmeter 10nW-10mW

Unsure if it turns on or works properly. We do not have any detector heads to fully test it. See attached photos.

We have 2 on hand at the time of listing. One of them the light turns on when its plugged in, the other the light doesn't turn on.

No returns.

LM