Dear Mr. Moriarity,

"Mister Moriarity"??? ;-) How about "John"?

R12 seems to be misspecified as well. On the
pdf schematic, R12 shows as "10W". I assumed
at the time that the W was simply a misconverted
omega symbol, so I had soldered in a 10 Ohm
resistor there.

Ten ohms is the "right" value, looking at a LM386
data sheet.

U1 does not amplify at all!!!

The LM386 should have plenty of gain if wired
correctly with these values. Something is very
wrong!

I am also suspicious of the connection of pin 7
on the LM386. I would disconnect it from the
junction of R12 and Cwhateveritis, and separately
bypass it to ground with a 10 microfarad cap
(plus side to pin 7). You might even get away
with not connecting pin 7 at all!

73, John - K6QQ