"Phil Allison" wrote in message
...
"GRe"
"Phil Allison"
"patrick-turner"
The 207A is described as an audio sweep oscillator, which I assume means
the F starts at 20Hz and over a time period the F is smoothly changed up
to 20kHz, enabling the audio F response of filters and speakers etc to
be seen on a CRO screen.
** Not at all, it is not a sweep generator.
Operation is purely manual [...]
...unless one employes the 1950's way of sweeping by using a motor fitted
to the protruding rear end of the tuning dial shaft.
** Which is not part of the 207As capabilities ...
See manual:
http://www.hparchive.com/Manuals/HP-207A-Manual.pdf , .pdf page
6, 2nd paragraph.
... NOR has anything to do with PT's silly assumption above.
With different wording the manual says what PT says.
Did you even read it ?
Did you?
FYI:
The max manual sweep rate HP recommend is one in 20 seconds.
OTOH a sweep generator has to produce a viewable trace on a scope - so 10
to 20 sweeps per second, at least.
Read (& interpret) the manual.
Use a paper chart X-Y recorder instead and a 20 sec. sweep (or slower) is
fine.
Gio Re