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Page 75
And finally,
Add a Black wire to the top tag, as shown below (you can actually use the empty hole in the tag on
the right side); it needs to reach pin 1 of the adjacent 300B valve base.
Add a Black wire to the third tag from the top (one end of the 1K Grid resistor), as shown below; it
needs to reach pin 3 of the adjacent 300B valve base.
Add a Black wire to the fourth tag from bottom (the other end of the 1K Grid resistor), as shown
below; it needs to reach the Left (or Right) O/P tab on the Driver board.
Connect the Black wire coming from the GND tab on the Power Supply board, as shown below.
If
you tin the end of the wire, make a small hook in the end and route it from underneath between
to tabs and 'over the top' you should be able to get a good mechanical hold.