[GRe]

"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