[Milsurplus] Question about signal generator

[gl4d21a at juno.com]

I *think* the mil nomenclature is TS-497/U.  Robert, please confirm/refute this.  I find several listings for the 497, but no pix :>(  There are manuals listed.

Anyway, the major difference, IIRC was the case.  The model 80 had a lab shelf case with no lid, the 497 had a ruggeder case with a lid.  But the guts are pretty much the same.  The usual failure was the bolometer, and I finally gave away a 497 because I could never turn up either the original part or a suitable substitute.

HTH
George
W5VPQ

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