[time-nuts] Antique precision timing device without, > electronics

Dan Kemppainen dan at irtelemetrics.com
Fri Mar 17 16:14:59 EDT 2017

This is all cool stuff, and neat to read about.

What's the best (Most stable, most accurate, best adev, etc.) tuning 
fork oscillator made?

What the lowest frequency tuning fork oscillator ever built? Was 1Hz 
ever achieved commercially?

Fun stuff for Friday!


On 3/17/2017 12:00 PM, time-nuts-request at febo.com wrote:
> Message: 8
> Date: Fri, 17 Mar 2017 01:34:39 +0100 (CET)
> From: "iovane at inwind.it" <iovane at inwind.it>
> To: Discussion of precise time and frequency measurement
> 	<time-nuts at febo.com>
> Subject: Re: [time-nuts] Antique precision timing device without
> 	electronics
> Message-ID:
> 	<1660573894.5853221489710879161.JavaMail.httpd at webmail-13.iol.local>
> Content-Type: text/plain;charset="UTF-8"
> This is mine, used to calibrate some aircraft related equipment:
> https://www.flickr.com/photos/103726899@N08/33326340242/in/dateposted-public/
> and its diagram:
> https://www.flickr.com/photos/103726899@N08/33482556075/in/dateposted-public/
> iov

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