[time-nuts] General Radio frequency standard question
paulswedb at gmail.com
Wed Nov 4 09:26:29 EST 2015
Hello to the group.
I have to say I keep coming back to these pictures of the syncronometer.
Wow did it arrive in that clean condition? If not how did you restore it? I
mean it appears evenin the hard to get to corners there is no grime build
On Tue, Nov 3, 2015 at 3:32 PM, Brooke Clarke <brooke at pacific.net> wrote:
> Hi Tom:
> http://www.prc68.com/I/GR650A.shtml & 1650
> Mail_Attachment --
> Have Fun,
> Brooke Clarke
> Tom Van Baak wrote:
>> Some of you know I spend as much time looking backward as looking
>> forward: both ends of the precision time envelope are extremely interesting
>> -- from chronometers and tuning forks -- to cesium clocks and masers.
>> In particular I trying to restore and power up several old NL (Norrman
>> Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks
>> from the 1930's. Can someone tell me if there's an active GenRad user
>> group, web-forum, or mailing list on the web? In spite of a heavy shelf of
>> General Radio Experimenter magazines, GR catalogs and GR manuals, I could
>> use some help.
>> Replies on- or off-list are ok.
>> For those of you new to the 20th century history of time & frequency see
>> mouth-watering specimens like:
>> time-nuts mailing list -- time-nuts at febo.com
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