[Test-Equipment] PTS250 - was General Radio module

[GandalfG8 at aol.com]

In a message dated 25/12/2011 19:36:17 GMT Standard Time,  
pete at petelancashire.com writes:

Last  week I got my first PTS. Model 250 M6N10 S/N 1A 6580. no 10 MHz,
1 Hz  resolution. Have not powered it up yet, but it is very clean
inside and  out. Hopefully $100 was not too much.
----------------------
Hi Pete
 
If PTS is Programmed Test Sources I'd say $100 was a bargain, but then  I'm 
a bit soft on the darn things and ever so slightly biased:-)
 
As far as I'm aware there's no manual for the PTS250 available online, my  
copy of the GPIB section is out there but I've never got round to scanning 
the  rest of it, but you'll find it shares quite a few modules in common with 
the  PTS160 and the PTS160 manual is at to-way.com and probably on Didier's 
site  too.
 
I'll try to get the PTS250 manual scanned sometime soon but that won't  be 
for a week or so at the earliest and would be happy to help with any  
specific information in the meantime.
 
One thing to check, the lower digit modules, from 100KHz down to 0.1Hz are  
all module type DM1005 and I've had at least one PTS500 which was sold as 
having  1Hz resolution, and with a blank switch in the 0.1Hz position, but 
was actually  a 0.1Hz version with the extra module still fitted but a couple 
of bus bars cut  short just before the 0.1Hz switch.
 
Regards
 
Nigel
GM8PZR