[time-nuts] Efratom M3100

[paul swed]

Strange indeed Bert I put the whole number into google and had 5 hits. The
first number is actually JM then the number but its a quad voltage
comparator according to the data archive. pdf is available and looks like
numbers of manufacturers made it. PMI TI Nat nalog dev. They are still
available also.
Regards
Paul.

On Sun, Apr 1, 2012 at 1:50 PM, <EWKehren at aol.com> wrote:

> In the past I have asked if some one has any info of the Efratom M3100. I
> have carefully dissected the unit and checked functionality. It sweeps but
> does  not lock. Lamp signal is strong  60 MHz and 5.xx all work properly
> and
> can  be seen on a spectrum analyzer The problem is in the loop and there is
> not  enough signal into the phase detector. Trying to follow the detector
> output is  challenging because lack of information and packaging density.
> Typical loop  frequency in a M100 is 127/254 in this case I see 85/160. I
> would
> expect in a  military application they would go up not down for vibration
> purposes. Tracing  the circuits is also made more difficult because of the
> use
> of mil parts and mil  nomenclature. I have most cross correlated and I am
> down to one PMI part   38510/11201BCA. Does any one have any info, such a
> nice unit, would like to make  it work.
> Thanks    Bert Kehren
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