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Page 19
M2 Power Supply Board Construction Steps
Installing the Valve Bases
Lets start by installing the 8-pin valve base with correct orientation.
The 8-pin (octal) valve base is shown opposite.
It’s a fairly tight fit into the board so take you will need to
take your time and make sure all the legs are individually
positioned over the holes in the board.
Now, let’s make sure we have the correct orientation - note
the Notch on the valve base along with the Notch on the
PCB. These need to line up - see next image.
Here you can clearly see the notches lined up – this is a
correct orientation of the 8-pin valve base.
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