[sdiy] Help needed with AFVL

[Peter Grenader]

(Acceptable Frequency Variation Limits).

Dear Colleagues,

I've got a VCO circuit I've been playing around with and finally got around
to slapping a tempco in there for temp compensation.  SO far (an hour-ish),
I've seen a .25% variance at 440 hertz.

Naively I ask you - what's acceptable (%)??

Not lab grade - but what's A good mean for our type application?

I just need an idea to see how horribly bad (or good) this is and what to
shoot for once I start noodling around for improvement.

Thanks in advance,

Peter