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Hi Time Keepers Not quite an answer to the below question , but my own request for  TCXO pinout info on my recent purchase on Ebay. The TCXO unit was designated to go into a HP5340A unit but the circuit doesn't seem to match with my oscillator module. The unit either gets warm or oscillates but NOT both together at the same time. Can't get a 10 MHz signal out but know it's oscillating by listening to it with a receiver. Perhaps it's needs surgery as per recent discussions in this forum. Or even may need special dual power supply , again as per recent forum discussions here. The module was made by Bulova and has p/n of 0960-0153. It has a 15 way edge connector  and a HP P/N of 05340-60036 on the module "mother" board. Other info on the module states it needs +10 and +5vdc  Hope some of you blokes can assist. Cheers from down under. Arie Schellaars VK3DBF --- On Sun, 1/3/09, Corby Dawson <cdelect@juno.com> wrote: From: Corby Dawson <cdelect@juno.com> Subject: [time-nuts] FTS 1200 9110 1000A-100 1000B pinouts here! To: time-nuts@febo.com Received: Sunday, 1 March, 2009, 1:02 AM Well after re-researcing the pinouts again I decided to post this while they are fresh. These Pinouts are for units removed from FTS Cesium standards and were verified by measurement in the standard. PIN        1000B                1000A-100                1200                  9110 1            EFC ground        EFC ground                EFC ground      EFC ground 2           EFC +- 10V        EFC +- 10V             EFC 0 to +10V    EFC 0 to +10V 3           coarse tune wiper       NC                        NC                        NC 4           +12 pot ref. (10K)     NC                        NC                       NC 5           Ground                    Ground                   Ground               Ground 6           oven mon.                oven mon..              oven mon.           oven mon. 7           +28V oven             +18V oven                 NC                        NC 8           +28V elect.             +28V                       +28V                    +28V 9            case ground                NC                        NC                        NC Hope this will help others! Corby Dawson ____________________________________________________________ Click here to find the perfect picture with our powerful photo search features. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTEuJFVrwUbhZLMoWdkMvKFgvKsveMbYvndjqBMzsnp5Ao03AENzO4/ _______________________________________________ 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. Stay connected to the people that matter most with a smarter inbox. Take a look http://au.docs.yahoo.com/mail/smarterinbox