Pin Connections

Here's the rest of the pin connections for the chips. Normally, you should have data sheets or data books which describe the chips.

Op amp - LF441 or TL061:
1 pin - balance, not connected
4 pin - minus 5 V
5 pin - balance, not connected
6 pin - output
7 pin - plus 5 V
8 pin - not connected

The Darlington, MPSA13 looks like a normal transistor.
left = emitter
center = base
right = collector
when looking at flat surface in front.
There are four connections to the Darlington collector - two diodes, and LED and a relay.

There are six Schmidt triggers on a single chip, 40106 or 74C14:
1 pin in - 2 pin out
3 pin in - 4 pin out
5 pin in - 6 pin out
7 pin ground
9 pin in - 8 pin out
11 pin in - 10 pin out
13 pin in - 12 pin out
14 pin plus voltage

4020:
1 = output, ignore
2 = output, ignore
4 = output, ignore
5 = output, ignore
6 = output, ignore
7 = output, ignore
8 - ground
9 = output, ignore
12 = output, ignore
13 = output, ignore
14 = output, ignore
15 = output, ignore
16 - plus V

4017:
1 pin = output position 5
2 pin = output position 1
3 pin = output position 0
4 pin = output position 2
5 pin = output position 6
6 pin = output position 7
7 pin = output position 3
8 pin - ground
9 pin = output position 8
10 pin = output position 4
11 pin = output position 9
12 pin = carry out, ignore
16 pin = plus V

4013:
2 = output, ignore
3 = unused input, stabilized at + or ground
5 = unused input, stabilized at + or ground
7 - ground
8 = unused input, stabilized at + or ground
9 = unused input, stabilized at + or ground
10 = unused input, stabilized at + or ground
11 = unused input, stabilized at + or ground
12 = output, ignore
13 = output, ignore
14 - plus V

OR gate - 4071:
1,2 in - 3 out
5,6 in - 4 out
8,9 in - 10 out
12,13 in - 11 out
7 - ground
14 - plus V
stabilize any unused inputs at either plus V or ground.

The Box:

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