Thanks for the answer. Any idea what these things were used in? I can't seem to find any information on the net.
Joe Gray KA5ZEC On Fri, Dec 4, 2009 at 5:27 AM, Bob Camp <[email protected]> wrote: > Hi > > Simple answer - yes. > > More details: > > The oven and oscillator supplies are split so you can regulate them > independently. Since there is very little current change (and very little > current) on the oscillator line you can regulate it pretty tightly. > > The oven monitor reports the current being pulled by the oven heater. There's > no need to terminate it. The two likely options are either a TTL signal > indicating it's gotten to a "warm" condition or a linear voltage tracking the > current. Watch it with a DVM when you put power on the oven supply. > > Bob > > > On Dec 4, 2009, at 12:10 AM, Joseph Gray wrote: > >> I came across a rather large OCXO from Frequency Electronics. The >> model number is: FE-30-OPC-2F. The frequency is: 10.763889MC. The >> pinout for the octal plug on the base is also labeled as follows: >> >> 1: +28VDC >> 2: Oven Monitor >> 3: Oven Ret. >> 4: Spare >> 5: Spare >> 6: Osc. Ret. >> 7: +28VDC Osc. >> 8: Spare >> >> I have a few questions. Can pins 1 and 7 be tied together to the same >> 28VDC supply? If so, then I assume pins 3 and 6 can also be tied >> together? I assume that pin 2 is simply some output voltage, >> proportional to the oven temperature? Is it safe to just apply power >> and let it run without using pin 2? >> >> Once I know how to power this thing without blowing it up, I'll hook >> it up to a scope and take a look at both pin 2 and the oscillator >> output on the BNC. >> >> In case anyone is interested, here are the dimensions, not counting >> the octal plug and BNC: 5" high x 3" x 3". There is a "Frequency >> Adjustment" screw on the top. >> >> I did a Google search, but didn't turn up any information on this >> unit. I was rather surprised, considering the name Frequency >> Electronics. Does anyone know the history of these things? >> >> One last question. The can is soldered at the base. Is is possible to >> unsolder it and replace the crystal without destroying things? >> >> Joe Gray >> KA5ZEC >> >> _______________________________________________ >> 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.
