It appears to be merely an ECL comparator; https://www.eevblog.com/forum/projects/yet-another-fast-edge-pulse-generator/
Bruce > On 11 October 2017 at 09:14 Magnus Danielson <mag...@rubidium.dyndns.org> > wrote: > > > Hi, > > On 10/10/2017 09:42 PM, Brooke Clarke wrote: > > Hi Larry: > > > > How does it work. > > When I was working with microwave semis it was either a tunnel diode or > > a Step Recovery Diode. > > > > Looking at the pictures, it seems like the surface mounted chip marked > AJK AAA is the driver-chip that connects through a capacitor over to the > centerlead of the BNC output. > > Some form of driver, and setup such that amplitude scale can be controlled. > > Cheers, > Magnus > _______________________________________________ > 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.