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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 -- [email protected] > >> To unsubscribe, go to https://www.febo.com/cgi-bin/ > >> mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
