Title: H/P freq/time standard and clock 103AR, 113BR, 724BR (updated) Post by: Opcom on March 05, 2021, 02:10:25 PM Link to larger and more images, etc. YAY it has its own web page. But it still needs a loving home! AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
http://bunkerofdoom.com/lit/hp_113BR_103AR_724BR/hp_113BR_103AR_724BR.html These are large files. I also got a video of moving the clock motor - it's a stepping motor -so it can be seen the gears apparently all freely move. Same for the microseconds dial. Every station needs a clock. I don't have time to play with this. YL/GF has stopped believing it's a nightstand. What's included: - 113BR Frequency Divider and Clock. Input 100KC. - 103AR Quartz Oscillator - 724BR -24V 300mA power supply with 48 Hr standby reserve. - The short rack pictured is included optionally your choice. About 24" tall and 22" deep. What's not included: - No cables to connect units, however, are simple 24VDC type wiring and coaxial BNC cables, see pics. - No case for the 113BR. This instrument is smaller than rack width and should be in its rackmount case. - No NiCd batteries in 724BR - all gone when I got it -as can be seen they occupied most of the space in the 724BR. A suitable C filter or regulated 24V supply will work in place of NiCd stack. BTW seems to use a NEGATIVE SUPPLY VOLTAGE POLARITY as called "-24" in a schematic. I have some tech info, will include. But no manuals except schematic for 103AR. -24VDC consumption 7 Watts @ 22-30V This beastie is more along the lines of a collectors item for any techno-horologists out there. Seems functionally/technically complete and the electro mechanical clock stuff moves freely and its dust cover is in place. Needs some cleanup and TLC, Untested. "used-repairable" condition. Please ask if you want more pics etc. $120 obo, Prefer pickup in Dallas TX or I can deliver with cargo van locally or farther based on mileage. Shipping will be costly on this because the 3 units have to be packed in separate cartons. I use Fedex pack and ship to make sure rare things don't get broken. Otherwise what's the point? |