At 12:26 PM 4/5/2007, you wrote: >My guess is that it is a converter that allows a fixed 10 MHz receiver to >receive a range of other frequencies. I can't quite read the tuning dial to >see just what range it covers. >-mike-
Zellwegger was (is?) a Swiss company. Back in the period after WWII they produced some moderately tunable receivers for around 8-15MHz for receiving time signals. I think what is shown here is an up-convertor designed to be used with the Zellwegger unit to receive the signal from the former time and frequency station VNG which had a very good signal on 2.5MHz and another around 4.5MHz. A Zellwegger receiver can be seen here: http://www.radiomuseum.org/forumdata/upload/Swiss%2D2%2Ejpg I would love to know where the convertor came from, I recall seeing a setup like this back in the early 60's in a laboratory with a Bendix BC-221 and some other early frequency counting and calibrating equipment, including a Russian copy of the BC-221. John >At 05:19 PM 4/3/2007, you wrote: > > > What is it? > > > > > > http://www.gmat.unsw.edu.au/currentstudents/ug/projects/f_pall/html/s19.html > > > >It might be some sort of filter or amplifier for WWV. (Or equivalent down > >under.) > > > > > >This one shows a recorder that does time stamps. They have to get the time > >from somewhere. > >http://www.gmat.unsw.edu.au/currentstudents/ug/projects/f_pall/html/s14.html > > > > > >-- > >These are my opinions, not necessarily my employer's. I hate spam. > > > > > > > > > >_______________________________________________ > >time-nuts mailing list > >[email protected] > >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >_______________________________________________ >time-nuts mailing list >[email protected] >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
