[sdiy] 555 osc lock-up???

[NSSINC]

	Have you tried the cmos 555? The Fatmans osc lock easy with standard
555s, the cmos version help a lot.

	-Al


peter edwards wrote:
> I'm building a circuit where two 555 oscillators are feeding to two
> inputs of a NAND network. When ever the frequencies get very close, the
> two oscillators lock together!
> Anyone know how to fix this??? I can use something other than a 555 if
> it would work better. ideally the circuit would be relatively simple.
> The output needs to be close to square (50% duty cycle) across the audio
> range of frequencies. I've been experimenting with the 40106 but it had
> the same issues.
> Thanks!
> -pete
> 
> 
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