Here’s the ‘before’ photo. It was cleaned up some by the previous owner, who graciously gave it to me,
after it became a transformer donor. You have to admit, it does have the look. The coil finish is kind of
odd. I do not know how close it is to HRO-50; i never did buy the manual for it. I would NOT start this
as a project with such minimal pieces as you have, for sure. That makes me think of rebuilding a fighter
plane from some wing found in the jungle. You COULD do it, sure, but there are many other candidates
out there that are more practical. My opinion.
I gave away an NBS-1 a year or so back; it had the National standard “missing power transformer”. I
regret now giving that thing away. I sold an AMR-101 about the same time. I sort of regret that also.
What moved me, literally, to sell it was the weight of the shipping trunk / operating rack. The thing
looked real good, but the whole setup must have weighed 300 lbs.
-Hue Miller