Hi, Cool to see. How well does it perform in todays context? Still useful or a bit too cumbersome to really use?
Cheers, Magnus On 2020-08-11 18:58, [email protected] wrote: > Hi, > > Saw Bobs recent post mentioning the NBS DMTD system. > > I happen to own one of those old beasts! > > My version has switch selected coarse delay and a fine variable delay to > match phases. > > (I really don't use them as it's easier to slew my reference or DUT till > the phase matches for low TAU work.) > > Also it has AC powers supplies versus battery for the papers version. > > I also replaced the RF connectors with isolated SMA. > > When I originally got it I had to repair one of the buffer amps and I > also replaced the op amps with better ones. > > Also replaced the caps and resistors for the 1 Sec setting with low > temperature coefficient ones. > > Cheers, > > Corby > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
