On Thu, Jan 5, 2012 at 6:11 PM, <time-n...@custodes.info> wrote: > Thanks, but what are people using to feed it? I'm having trouble pinning > down power requirements. http://www.freqelec.com/rb_osc_fe5680a.html says > 32W peak, but then also 15-18v@700mA, which doesn't make sense. I'm still > waiting on the slow boat from China, so I have a while to find a power > supply. >
I'm using a Mastech HY5020E* set to 15V to test mine. Yes, complete overkill, but it's the only supply I have that will do > 1A at 15V. 14V would have been easy. I supplied the 5V with a 7805 (I left the 5680 screwed to the circuit board it came on and held the 7805 down with one of the allen screws). BTW, the wires from the plug to the circuit board were standard color code, matching the pin numbers, so it was really easy to wire up by cutting and splicing the existing wires (with a little heat shrink tubing to keep things honest). The Mastech shows 1.8A to start, dropping to 0.8A after a few minutes, including whatever the 7805/5V line is using. *the HY5020E gets really confused when you turn it off. As the voltage drops - it seems to flip back and forth between constant current and constant voltage modes for many seconds, blinking its displays and LEDs on and off! Orin, KJ7HQ. _______________________________________________ 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.
