To add CV and GATE to Minimoog, Synthfool style

Extend keyboard CV from brown/white wire normally going to edge card pin 9A on board 2,  to n/c switch on CV input jack.

Connect tip of CV input jack to a piece of wire.
The other end affix a new edge connector pin. 
Insert into pin 9A of board 2.

Extend keyboard GATE from white/orange wire normally going to edge card pin 6A on board 2,  to n/c switch on GATE input jack

Connect tip of GATE input jack to a piece of wire. The other end affix a new edge connector pin. 
Insert into pin 20B of board 2 (or jumper R65 (pin 6A) to anode of CR10 (pin 20B))

Remove or snip the wire from the keyboard connector #5 (usually green) to the farthest (n/c) bussbar.

Needed above: 5 pieces of wire, 2 flag connectors, 2 jacks w/ n/c switches, 3 pieces of heatshrink.

Replace R1 (590 ohm 1%) on board 2 with 50 ohm cermet multiturn trimmer and 576 ohm 1% resistor (50ppm or less) in series.
After Mini has warmed up and power supply calibrated, adjust keyboard to exactly 1v oct output using this trimmer.
(alternatively, you can use a 620 ohm fixed resistor for R1 with a 25K cermet trim across it.)

Tune VCOs last.
Now VCOs will be exactly at 1v/oct for external CVs also.

Earlier minis may need a slightly different hookup for the Gate to operate....

Remove or snip the wire from the keyboard connector #6 (usually orange/white) 
Extend keyboard GATE from Green wire normally going to edge card pin 20B on board 2,  to n/c switch on GATE input jack

Connect tip of GATE input jack to a piece of wire. The other end affix a new edge connector pin. 
Insert into pin 20B of board 2 and jumper R65 (pin 6A) to anode of CR10 (pin 20B)