I have been considering making a tray for one or two 7A13 Differential Amplifier plug-ins from the Tek 7k series. The 7A13 has differential output, so aside from a few supply voltages, I need a wideband diff amp and voila. This could drive a conventional (read: limited dynamic range) DSO or anything else as needed.
I have two such plug-ins and a donnor 7603 mainframe for the chassis, just need some time and more motivation or need than I can muster at the moment... Didier > -----Original Message----- > From: time-nuts-boun...@febo.com > [mailto:time-nuts-boun...@febo.com] On Behalf Of Lux, James P (337C) > Sent: Friday, July 24, 2009 1:04 PM > To: Discussion of precise time and frequency measurement > Subject: [time-nuts] adjustable gain/offset amplifiers > > I'm looking for some amplifiers with adjustable gain (say > from 0 to 5) and offset (say +/- 5V) for general benchtop use > (e.g. you have some widget you want to test as a replacement, > but the original device had different input ranges, and > before you go redesign the rest of the circuit..) with at > least 10 MHz BW. > > SRS has something close (SIM983) but it's only 1 MHz BW.. > > I'm thinking that someone might have run across it in the > nuclear instrumentation or experimental physics area? (I > looked through the Ortec NIM module listing, but nothing lept > out). I've also run across the instrumentation amps used for > strain gages, but they're all in the few tens of kHz range. > > I'd like to avoid cobbling up something with some wideband > opamps and pots (which is what we've done in the past..). > > > James Lux, P.E. > Task Manager, SOMD Software Defined Radios Flight > Communications Systems Section Jet Propulsion Laboratory 4800 > Oak Grove Drive, Mail Stop 161-213 Pasadena, CA, 91109 > +1(818)354-2075 phone > +1(818)393-6875 fax > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, > go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.