Dave Johnson wrote:

> It's a surface mount resonator (Murata CSTCC4.00MG if you care), and I
> did replace it once, I'll re-solder and clean it up to make sure.

There is absolutly no substitute for cleanliness. Especially in high impedence
circuits (like this oscillator). Wash with whatever solvent is appropriate for
your flux. Then wash it again, with 99% isopropyl alcohol. Then follow up with
a wash in distilled water, and don't forget to dry thoroughly.

There's a coralarry to Nurphy's law which states: "Amplifiers oscillate,
oscillators amplify."

good luck,
Phillip

--
Phillip M. Vogel, President   | "It's not what you've been taught,
Bartal Design Group, Inc.     |  it's what you've learned." (me)
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