It also makes the negative DAC voltage rail. The Tbolt DAC swings from -5V to +5V. Lose the -12V and you can lose oscillator control.
----------------------------- The -12V is only used to support the RS-232 driver. The CPU should be running and you should have discipline even without the -12V _______________________________________________ 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.