Paul, send whatever you have to clist <mailto:cl...@hanler.com> at hanler (without the D) dot com
Also, the caps we replaced were only 4 electrolytics. 3 x 470uf 25v and a 270uf at 16V. I used a 330uf 25v for the later. I’ve seen them for like $30 Canadian. I think they are inexpensive due to the failure of the caps, no rs232, no docs, etc. I get great lamp voltage on mine, all over 10V if that says anything. They seem stable but I don’t have the test setup needed or much to compare them to except my GPSDOs. I hope to have a Cesium standard by end of year and I am building the TPLL test set. But it seemed like there was some decent work done on the physics package. Looks like it was all assembled by hand, then taped-up, sealed twice and clamped. Thanks. Jerry > On Nov 30, 2017, at 5:24 PM, paul swed <paulsw...@gmail.com> wrote: > > Jerry > I have some dribs and drabs of details on the units I have. Happy to send > whatever I have to you directly. Suspect its to large for FEBO. What I can > tell is they must have been considered quite good and for military use. I > haven't run mine alot because I was concerned about the temp like you. Nor > have I really dug in. They just worked from day one. > Granted maybe better if I look at the caps. The good thing about the unit > is the connector is clearly labeled with the pin functions. So I was able > to operate them right out of the hamfest. As I recall these were very very > inexpensive. > Regards > Paul > WB8TSL > > On Thu, Nov 30, 2017 at 8:04 PM, Jerry Hancock <je...@hanler.com> wrote: > >> Paul, The units Gilbert gave me were TS-RFS. They are fairly large. The >> physics end is about 5”x2”x2" and overall length about 9”. They lock >> pretty quickly now that I’ve replace the caps. They can drive 50ohms >> pretty hard, outputting a square wave. I’m thinking of bolting on some >> fins to the physics end. Just two points: 1) it would be nice to dial them >> in closer; and 2) I wish I had equipment to test them more accurately. I’m >> working on building one of the Tight PLL test sets to solve #2. Gilbert >> suggested we look to see if we could tap into the field current somehow to >> set the frequency more accurately. >> >> >>> On Nov 30, 2017, at 3:44 PM, paul swed <paulsw...@gmail.com> wrote: >>> >>> Jerry >>> You have some EG&G RBs. Thats great news. Now I am not alone. I have 2 >> also >>> that work. I have found little details on them. >>> That said I believe they are intended to be mounted on a heat sink. One >> end >>> surely looks like that whats would be done. >>> I believe mine are LCR-10-T. Might have to double check that. >>> Regards >>> Paul >>> WB8TSL >>> >>> On Thu, Nov 30, 2017 at 6:22 PM, Jerry Hancock <je...@hanler.com> wrote: >>> >>>> I was able to get all 5 of these EG&G Rubidium Frequency Standards >> running >>>> by replacing the caps as another member found. They have a large >> heatsink >>>> on them, no fins, and are running at 43C. Is that too hot? Should I >> bolt >>>> them down to a larger heatsink? They consume a little over 9w after >> they >>>> lock, about double that while warming up. >>>> >>>> The only other issue I see is that the 8bit frequency setting doesn’t >>>> allow me to set the frequency closer than 5E-11. I don’t know if this >> is >>>> good for these units and RFS in general or not. >>>> >>>> Thanks. >>>> >>>> Jerry >>>> >>>> [/begin buttkissing] >>>> >>>> PS: I have learned quite a bit from this group in the past couple of >>>> months. John Miles, Gilbert, Mark Sims, Bob, etc, etc have been a lot >> of >>>> help and have added a lot of enjoyment to my hobby. >>>> >>>> [/end buttkissing] >>>> >>>> _______________________________________________ >>>> 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. _______________________________________________ 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.