using microphone to control 3v DC motor speed

hi

sorry my mistake, they do use a 10R resistor in the standard design for the LM386, but on the output of pin 5, not between 1 and 8. So your 10K resitor is OK. It would set the gain to something between 20 and 50, according to the datasheet:

"To make the LM386 a more versatile amplifier, two pins (1
and 8) are provided for gain control. With pins 1 and 8 open
the 1.35 k[ch937] resistor sets the gain at 20 (26 dB). If a capacitor
is put from pin 1 to 8, bypassing the 1.35 k[ch937] resistor, the
gain will go up to 200 (46 dB). If a resistor is placed in series
with the capacitor, the gain can be set to any value from 20
to 200. Gain control can also be done by capacitively cou-
pling a resistor (or FET) from pin 1 to ground. "

D