I'm not sure about the left module, but think the blue modules are a Spectracom WWVB Receiver and its stripchart.
-John ============ > ISTR this is a Rubidium source ... eBay item 320438444896 > > No connection with vendor. > > Dave _______________________________________________ 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.
