I'm familiar with building a VCO using varactor diodes, but I was wondering about other designs. I was discussing this with my father, and suggested the idea of changing the biasing of transistors making it take longer for the voltage to come up. Would this effect be pronounced enough to work? -- Paul Anderson VE3HOP wackyvorlon@gmail.com http://www.oldschoolhacker.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist