🚀 go-pugleaf

> How can I obtain large fluctuations in a *low* speed oscillator?  I
> want an oscillator at about 3 kHz with large unpredictable variation
> in the lengths of individual cycles.

Well...

If rectangular waves are OK, you could use a pair of oscillators, set
to relatively prime frequencies.  They could be combined in different
ways for different effects, such as XOR'ing, or using the clock & "D"
inputs of a flip-flop, or "phase comparator II" of the 4046 PLL.

Or, use a VCO, and feed the voltage-control input with a noise source,
say the RC-filtered output of a pseudo-random sequence generator.

Or, a Wein-bridge oscillator, with the resistive-tuning element being a
photocell, pointed at a lava lamp.

Or, use a high-gain amplifier I built some time ago.

Or...

-- 
				Mark S. Freeman
				Applied Microsystems, Inc.
				markf@amc