1) Need a 24 VDC power supply. Am considering just buying an Astron VLS-35M Adjustable Voltage/Current supply (5-32V/1.5A to limit) since I don't own a variable power supply yet, this is a linear, and the same size package as my RS-70M. I can worry about a dedicated supply later if I decide to keep this GPSTM after I finish modding/testing it.
Anyone have any recommendations to the contrary? Why? 2) Need to bring the PPS out from the TP in this article: https://www.i3detroit.org/wiki/Nortel_GPSTM The article shows a buffer circuit being used to accomplish this... Need help locating a datasheet on the Motorola chip used... It's obsolete and I need to find a pin compatible replacement... Or, I need to find another buffer schematic/plan, Or, alternatively.... has anyone ever tried pulling the 1pps out and hooking it to the 9.8 MHz driver (severing the drive line to it and jumpering in the 1pps)? The 9.8MHz and the 10MHz signal out ports SEEM to use identical driver/buffer circuits on this board... Seems like a possibility... Preferably, I find the Motorola chip, copy the buffer circuit and move on... I'm pretty new at this, so any help is appreciated, and not slapping me about for "not knowing" stuff is greatly appreciated! :) Sincerely, -- ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 _______________________________________________ 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.
