This Canadian RCA apparatus was also called wavemeter but is a heterodyne frequency meter and a signal generator.
https://www.pa3esy.nl/military/us/meet/TE149/html/te149_set-gb.html iov >----Messaggio originale---- >Da: "Tim Shoppa" <tsho...@gmail.com> >Data: 15/02/2017 17.29 >A: "Discussion of precise time and frequency measurement"<time-nuts@febo.com> >Ogg: Re: [time-nuts] Vintage Frequency Measurement > >For those of us who have to translate between the old "cps" and the modern >"Hz", I found this handy conversion table on the web: >http://www.aqua-calc.com/convert/frequency/hertz-to-cycle-per-second > >Tim N3QE > >[image: Inline image 1] > >On Tue, Feb 14, 2017 at 5:29 AM, Peter Vince <petervince1...@gmail.com> >wrote: > >> On 14 February 2017 at 04:23, Raj <vu2...@gmail.com> wrote: >> >> > I have a Marconi T.F. 643 C, in Megacycles ! >> > >> >> Ah, a sensible, descriptive name for the unit. Some of these modern units >> really do Hert(z) :-) >> >> Peter >> _______________________________________________ >> 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. _______________________________________________ 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.