From: mynamespacedbydots@xs4all.nl   
      
   "Phil Allison"  wrote in message   
   news:bd8phpF7arsU1@mid.individual.net...   
   >   
   > "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.   
      
   HP-297A Sweep Drive, not sure if this device does fit to the 207A, but   
   anyway:   
   http://www.hparchive.com/Manuals/HP-297A-Manual.pdf   
      
   Gio Re   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)