Next place and solder the
IC socket
. Make sure that the
notch is in the same direction
as printed on
the circuit board. Then add the capacitor, there is one
100nF capacitor
(marked “104”). Solder also the
BS170 transistor
(flat side of transistor must
match the outline
drawn on the PCB).
Turn around the PCB and
insert and solder the
6 pin
male header
. Be careful to
solder the pinheader straight.
You may first solder the
middle pin
, then take the
board in your hand and
reheat that pin while pressing
down on the header to align
it. Wait for it to cool and
solder the rest of the pins.
Before next soldering don’t forget to insert the
IC
(MCP6004). Again
watch out for orientation
.
Now just insert mono
jack connectors
(6x) and
green LED
(The LED is polarized so make sure that
the longer lead (+) is facing left).
Don’t solder anything
yet!
3
