I'm unclear what you are trying to do. Rick
steve heidmann wrote: > Hi Rick, > > Is he available to help hot rod one with a SiGe oscillator transistor ? > > Steve > > --- On Thu, 9/4/08, Richard (Rick) Karlquist <[EMAIL PROTECTED]> > wrote: > > From: Richard (Rick) Karlquist <[EMAIL PROTECTED]> > Subject: Re: [time-nuts] Help with HP 8640B generator > To: "Discussion of precise time and frequency measurement" > <[email protected]> > Date: Thursday, September 4, 2008, 9:23 PM > > Trivia: The engineer who designed that chip for HP 35 years ago > has the cubicle next to me at Agilent Labs! It was considered > very advanced at the time. > > Rick Karlquist N6RK > (employed by Agilent Technologies) > > Murray Greenman wrote: >> I've obtained a faulty HP 8640B signal generator, and have determined >> that the fault is in one of the dividers. (The unit has output only on >> the top two ranges). Other than that, the generator seems to be in fine >> fettle. >> >> Since the chance of finding a replacement gold-plated HP-numbered ECL >> chip is less than improbable, I'm left with the option of trying to > find >> a replacement board from another junked generator. >> >> So, does anyone by any chance have a spare divider board from an 8640B, >> or a suggestion of how to replace the 64-128MHz divider with something >> else? >> >> 73, >> Murray ZL1BPU >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
