I use a 16 Volt Laptop power supply followed by Low Noise LT1764A linear regulator for +12 and a 7805 for the logic. If you want to splurge use a LT1764A also for the +5.. To generate the -12V a Microchip TC962 followed by a 79L12 does a nice job. The +5 and -12 are not that critical. That is a reliable and good low noise supply. I personally have added eight NMH cells for backup and that adds extra circuits but I first started with the basic circuit mentioned above. Bert Kehren In a message dated 2/10/2011 8:23:22 P.M. Eastern Standard Time, t...@skybase.net writes:
Hi Larry, I use a linear supply for mine. My supply is actually a headphone amp supply kit from JayCar Electronics here in Australia. Its basically two LM317's and a 7805 for 5v. I changed the resistor that set the output voltage from 15v to 12v and also selected an appropriate toroid transformer to suit. Links here.... http://www.jaycar.com.au/productView.asp?ID=KC5418&CATID=25&form=CAT&SUBCATI D=557 http://www.jaycar.com.au/productView.asp?ID=MT2084&CATID=19&form=CAT&SUBCATI D=539 I dont know if you can get these kits in the US or if JayCar ship internationally, you'd have to ask. I'm sure you could find or build something similar state side :) regards Tim -- VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT-VK :: AMSAT _______________________________________________ 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. _______________________________________________ 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.