9
SECTION 3 – Mount the Tube Socket, Shield, 5 Lug Terminal Strips & Toggle Switch
Please refer to DRAWING 3.
1
2
3
4
5
6
7
8
9
1) From outside of the enclosure, insert the two #4 screws through the
mounting holes of the tube shield base and into the two 1/8" chassis holes.
ENCLOSURE BOUNDARY
Use the #4 screws, lock washers and nuts to mount the tube socket and shield as shown below.
Mount the socket with the large gap
between pins 1 and 9 on the side of the
enclosure closest to the footswitch.
2) Place the tube socket onto the two screws so that the gap between pins 1
and 9 is directed toward the end of the box with the footswitch.
OUTSIDE OF THE ENCLOSURE
INSIDE OF THE ENCLOSURE
3) Fasten the two #4 lock washers and nuts onto the two screws and tighten.
COM
1
2
3
4
5
COM
1
2
3
4
5
4) Mount the 5 lug terminal strip with the
grounded terminal #1 between the 1K pot and
the tube socket using #6 hardware.
5) Mount the 5 lug terminal strip with the
grounded terminal #5 between the 250K pot and
the tube socket using #6 hardware.
Be careful to mount these so that none of the terminals are
unintentionally shorted to ground by surface to surface
contact with the tube socket or potentiometer bodies.
(Because the space is tight and the nuts/washers are small, it may be helpful to insert the screws and place a piece of
masking tape over them to hold them in place to make it easier to get the washer and nut on the screw after the socket
is in place.)
6) Mount the toggle switch in the ¼” hole adjacent to the 1K gain pot using hardware provided.
1
2
4
3
5
6
7
8
9
Note: Due to variance in socket manufacturing, the pins on your socket may not be in the same position relative to the
socket's mounting holes as shown in the layout drawings; however, the gap in the socket will always be between pins 1
and 9. Make sure you are making your tube socket connections to the correct pin numbers with respect to the gap and
not their position relative to the mounting holes.
1
2
3
4 5
6
7
8
9
1
2
3
4
5
6
7
8
9
Socket
Mounting
Holes
Socket
Mounting
Holes
Gap between
pins 1 and 9.
Bottom view of a
12AX7 base pin
orientation.