Ahh, the HP-5110A was the driver for the 5100 Synthesizer, a monstrously heavy beast from the 1960s. See this link:
https://www.prc68.com/I/HP5100.shtml On Sun, Jun 6, 2021 at 10:28 AM Poul-Henning Kamp <[email protected]> wrote: > -------- > Magne Mæhre writes: > > On 6/6/21 4:22 PM, John Ackermann N8UR wrote: > > > Looking through the junk box I came upon a metal box labeled: > > > > > > Frequency Standard > > > 05110-6014 > > > Series 330 > > > > This eBay listing lists it as a 1 MHz HP frequency standard > > HP 5110 was the driver HP's first "cash-register" synthesizer. > > According to the HP5110A manual: > > 05110-6014 is "A2 Frequency Standard" > > And: > > 05110-6081 is "A3 Crystal Filter" > > https://bama.edebris.com/manuals/hp/5110a/ > > > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > [email protected] | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > _______________________________________________ > time-nuts mailing list -- [email protected] -- To unsubscribe send > an email to [email protected] > To unsubscribe, go to and follow the instructions there. -- Jeremy Nichols Sent from my iPad 6. _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
