For some strange reason, 5370A's with missing ROM boards seem to be more common than one would expect. I now know there are at least two others...
Another question to ask is how many 5370's are out there without the oven oscillator option? It might be worthwhile doing a small run of oven oscillator power supply boards. I also noticed that the 5370 drives the oven with unregulated power. I suspect one could get better performance by using a regulated power supply. The 10811 spec is 2.5e-10 for a 10% change in oven voltage so the improvement would not be a whole bunch, but is noticeable. I did a test with a variac and could see the effect over what my normal line voltage daily range is. The oven power is generated via a bridge rectifier / 16V transformer winding which generates a nominal 22V, not much headroom to meet the 20V oscillator spec, but doable... I see another pimp 'yo 5370 project coming. ---------------------------------------- While I don't have a need for your mod... _________________________________________________________________ Bing™ brings you maps, menus, and reviews organized in one place. Try it now. http://www.bing.com/search?q=restaurants&form=MLOGEN&publ=WLHMTAG&crea=TXT_MLOGEN_Local_Local_Restaurants_1x1 _______________________________________________ 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.
