a power oscillator
used to drive the lamp ... a few failures there, too. :-)
Tnx,
Jim
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Robert Lutwak
Sent: Saturday, August 06, 2005 5:11 AM
To: Discussion of precise time and frequency measurement
Subject: Re
6, 2005 5:11 AM
>To: Discussion of precise time and frequency measurement
>Subject: Re: [time-nuts] Newbie with new questions: Rubidium
>
>
>The lamp runs quite hot (typically over 100C). Failure is
>generally the
>heater, which is typically a transistor or FET bolted to the
obile
- Original Message -
From: "Magnus Danielson" <[EMAIL PROTECTED]>
To: ; <[EMAIL PROTECTED]>
Sent: Saturday, August 06, 2005 7:40 AM
Subject: Re: [time-nuts] Newbie with new questions: Rubidium
From: <[EMAIL PROTECTED]>
Subject: RE: [time-nuts] Newbie with new
From: <[EMAIL PROTECTED]>
Subject: RE: [time-nuts] Newbie with new questions: Rubidium
Date: Fri, 5 Aug 2005 16:45:17 -0700
Message-ID: <[EMAIL PROTECTED]>
> Our experience has been that the most common
> failure in Rb standards is the Rb lamp. There
> is a known wearout
>-Original Message-
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>Behalf Of Rex
>Sent: Friday, August 05, 2005 1:40 PM
>To: Discussion of precise time and frequency measurement
>Subject: Re: [time-nuts] Newbie with new questions: Rubidium
>
>
>On Fri, 05 Aug
On Fri, 05 Aug 2005 20:26:36 +, [EMAIL PROTECTED] wrote:
>Usually, Rb clock failures are electronic. Failed components are
>generally the same you'd expect on any electronics. Check first
>the power supply capacitors.
Someone gave me a Rb source a few years ago that would not lock. It
tur
10-20 years is pretty good reliability for any electronic system. Unlike the
cesium beam clocks which have a natural wearout mechanism (cesium depletion),
the rubidium physics package can, in principle, last forever.
Usually, Rb clock failures are electronic. Failed components are generally th
Hi
Q2D. Anyone have the electronic manual for these Rb?
I'd like to know the pin out specs as to how to use other pins.
I've a pdf manual for the FRS-C that includes schematics, I can send it
to you are interested (about 2.5Mb) It even includes schematics.
Regards,
Javier, EA1CRB
___
> Recently I acquired 10 compact Rubidium modules cheaply
> (http://www.dl-car.com/~2038/time/rubidium1.jpg etc.)
> made by Efratom between 1991 to 1997. They look identical
> internally and perform equally good by my preliminary tests.
> By comparing outside appearance with the Rb module FRS-C
>
Recently I acquired 10 compact Rubidium modules cheaply
(http://www.dl-car.com/~2038/time/rubidium1.jpg etc.)
made by Efratom between 1991 to 1997. They look identical
internally and perform equally good by my preliminary tests.
By comparing outside appearance with the Rb module FRS-C
inside
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