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As I remember there were 3 major chassi maybe more. Our town
was full of EE's from the old Rt 128 firms in days of yore.
So Heathkits were very common, even had a Heathkit store on Rt9 in
Wellesley I think it was.
1) an all tube set. Saw lots.
2) early SS set I think was an RCA clone w/SCR sweep.
3)the Zenith System 3 referred to.
We would not work on them but I remember people trying to buy
transistors & you couldnt cross them. Mostly RCA, so were the CRT's.
As far as quality goes I never saw a good tube job. Nothing
special except the built in generator & early OSD.
Physically only as good as the builder. IIRC had a hinged swing out chassis,
a nice touch.......
73 Zeno
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