4 Jul
2006
4 Jul
'06
1:29 p.m.
Back in the
late '70s and early '80s, I used a particular
oscilloscope, a "TYPE 304 H" "CATHODE-RAY OSCILLOGRAPH" from
"ALLEN
B. DUMONT LABORATORIES, INC., PASSAIC, N.J., U.S.A." (all quotes
come from the front panel markings).
I'm not sure if the one I have is the
same unit or not, but I have
one in storage that's of this make. Apparently military surplus? My unit has a cover that fits over the front, and in
which probes
etc. can be stored. Does this sound like what you have?
No. My unit has no cover, and, while that might not mean much in
itself, it also does not have any apparent way for a cover to attach.
[...]
Seems to me that another thing that you might consider is whether or
not there's any sweep being triggered. Since the X
position knob does nothing, I speculate that that pot
has gone bad and is, in terms of the circuit it controls, always
hard over against one margin. Does this sound plausible?
Not really.