Brand P&H
Model P&H Electronics DI-1
MPN DI-1

Check the listing for details. P&H Electronics Model DI-1 RF Distortion Indicator Oscilloscope. Condition: For parts or not working. Listed at 90.24 USD. Powers up. I had to fiddle with the knobs to get an image on the screen. Not familiar with it. It wasn't hooked up to anything. It had an odd odor after running for a minute. No further testing done.

$45.12
$90.24