[time-nuts] time-nuts Digest, Vol 186, Issue 41 Double Oven

[Bob kb8tq]

Hi

Not quite sure what the units on “expensive” should be in the case of an
Rb standard. We get used to surplus prices on a lot of stuff and that 
can skew the “calibration” a bit. 

Sell price on a Telecom Rb depends more than a little on how many 
you are buying. In modest quantities (100’s at a time) they rarely get
below $1,000. 

Even after a number of years on the market, the CSAC still is a unique
part. I’ve had other parts of a similar size on the bench, they aren’t on 
the market yet. Those units didn’t hit CSAC power levels. There are other
parts talked about here and there, but none on the market …

I’d say they are fairly priced for what they are.

Bob

> On Jan 31, 2020, at 12:28 AM, Andre <Andre at Lanoe.net> wrote:
> 
> 
> Interesting project. Would a CSAC actually fit?
> 
> Last I heard these are ridiculously expen$ive (£1000+) assuming you can get one.
> They are also restricted in some countries it seems.
> 
> -Andre
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 30 Jan 2020 12:29:56 -0500
> From: Bob kb8tq <kb8tq at n1k.org>
> To: Discussion of precise time and frequency measurement
>        <time-nuts at lists.febo.com>
> Subject: Re: [time-nuts] Cesium Mechanical Chronometer
> Message-ID: <D483FD62-C608-49C6-AD95-AA70852C7B65 at n1k.org>
> Content-Type: text/plain;       charset=utf-8
> 
> Hi
> 
> There?s not a lot of ?room? inside the typical Hamilton chronometer. Simply getting
> an electronic drive gizmo inside (and wires out) would be a major task. Having it work
> properly with the drive coming and going ?.wow ?. The detent setup is a very fiddly
> bit in these devices.
> 
> My *guess* is that a CSAC on a couple of batteries will run longer than the chronometer
> (before it needs to be wound). If auto winding is part of the mix, that gets even more into the
> ? wow ? region.
> 
> Bob
> 
> 
> End of time-nuts Digest, Vol 186, Issue 41
> ******************************************
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.