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 -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.