Copyright © 2006-2011 AudioNote Kits
www.AudioNoteKits.com
Page 30
Wiring the M2 Power Supply Board
Get your Bag #2 from the Wire Bag as we will be installing the “filament” wires onto the board. We are going to connect
several wires to the M2 power supply board
– this is easier to do at this stage.
FILAMENT LESSON
: In order for a tube to function it must be supplied with a Filament Voltage
– this is basically a DC (or
AC) voltage applied to 2 pins on the tube -
this is what makes the tube “light up”. We get these filament voltage supplies
from the M2 Power supply board - these twisted wires will be supplying the filament voltage to the tubes on the audio
board!
Remove the two long twisted wires
from the Bag #2
– We will be inserting
these into the PCB from the underside
of the board.
From the underside of the board you
can see how the wires are positioned.
On the topside of the board you can
see the wires protruding through in the
correct location
– the red wire will be
the + side and the black wire will be
the negative.
You will see the +6V2- Note that we
use this board in a number of different
configurations for both 12v and 6.3v
filaments for different kits
– the stencil
is always marked 6V2.
Solder the filament wires from the top
of the board now and you will then
want to clip the tops of the wires - be
careful not to let them flick up and hit
you in the face!
