JW wrote in message
...
Hello all,

I have this HP 8116A 50MHz Programmable pulse/function generator that's
almost working perfectly. However, whenever the amplitude is set below
EXACTLY 10.00 volts, the output puts out nothing. 9.99 volts and lower
does not work at all. Any ideas?

Thanks!

Different make but the symptoms surprisingly the same and rang a bell, nasty
to work on IIRC

Philips PM5770 pulse generator
Output on 10V setting but not lower settings.
Inside the screened attenuator box a secondary switch
mechanism comes into action in the 10Volt position
but was failing to return on spring action on lower settings.

from my repair briefs file
http://www.divdev.fsnet.co.uk/repair4.htm

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/