Populating the Socket Board
The general details of this process are given in our Construction Guide however there are a few
extra things that are worth mentioning. You not only have the sockets and headers to fit but you
also have a switch to attach to the socket board.
This is an Apem toggle switch mounted to a 3mm Schaeffer panel. Note the spring washer and nut behind the
panel. The nut at the front cannot be seen but it is the inside one that you need to use to secure the switch to the
panel.
Once you have soldered your headers and sockets into place remove the socket PCB from the panel
and fit your switch into the correct hole in the panel. Use the one of the nuts and the spring washer
on the inside of the panel. Use the second nut on the front of the panel but don't tighten it up. Only
thread it on so that all the nut is in place on the bush of the switch. Now use the inner nut to tighten
the switch to the panel. This way you won't scratch the front of the panel. Use a 5/16” open ended
spanner to do this but don't tighten it too much, it's only a little switch. It doesn’t matter which way
the switch goes in so long as the toggle moves up and down. Note you do not have to use the tagged
washer that the switch normally comes with. Now solder a short length of thin uninsulated solid
core wire to each of the three tangs. You can use some resistor lead clippings if you wish. Make
sure the wire leads stick up at right angles from the panel surface.
Now refit the socket PCB with all of its sockets back onto the front panel. Carefully align the three
wires through the three solder pads in the PCB. Now you can then flip the panel over and fit all the
sockets’ washers and nuts. Once this is done, you can solder the three switch leads onto the PCB.
Clip off any excess lead length that sticks out above the solder.
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Summary of Contents for VCO 5U
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