and

Thanks Mike In a message dated 4/1/2012 4:33:51 P.M. Eastern Daylight Time, mblazer@satx.rr.com writes: The JM38510/11201BCA crosses to a LM139 which is the Mil-Spec version of the LM339. Mike On 4/1/2012 2:39 PM, EWKehren@aol.com wrote: > Paul thank you. > I tried google and only got links to advertise other parts. Makes sense, > unit has a summary bit output, probably checks 4 levels and gives a lock > output. Different from M100 and other Efratom products. Still hunting for the > 85 Hz, 127 Hz on the M100 is 5V pp into the phase detector. can not rule > out the actual cell, maybe the step recovery diode. Will try every thing else > before I go there. > Bert. > > > In a message dated 4/1/2012 3:14:55 P.M. Eastern Daylight Time, > paulswedb@gmail.com writes: > > 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@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 >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.