[Mike Rivers]

Erik Korte wrote:

I guess I'll hit Mouser. I just didn't see the value of the caps in
the video, and there appears to be more parts in the shot than what is
used.

That other video is a little clearer, but I'd suggest that before you
look at the
Mouser catalog, open up your recorder and get an idea of how much space
you'll have to work in. The parts list is about 30 seconds into the
video and
the component values are also on the schematic. He doesn't specify the
wattage of the resistors, but he does specify the tolerance (1%) and you
want
the smallest ones you can find. There's no power there so you don't need to
worry about wattage. He doesn't have the capacitor on that list near the
beginning
of the video, but on the schematic, it's 3.3 uF tantalum, 25V. The
switches are
DPDT (double pole double throw). The connectors are single hole mounting
RCA jacks.

The modification is simple. What he's doing is cutting the leads to the
microphones,
putting the switch in line with the input (where the mic went), then
connecting the
mic to one side of the switch and an attenuator followed by a capacitor
to the other
side of the switch - so the switch selects between the mic going
directly into the
amplifier and the new line input jack attenuated by 1/10 going into the
amplifier.

The trick is to stuff all the parts back in and still be able to close
the case.
Good luck.

--
"Today's production equipment is IT based and cannot be operated without
a passing knowledge of computing, although it seems that it can be
operated without a passing knowledge of audio." - John Watkinson