https://www.diyautotune.com/wp-content/ ... xample.jpg
Or if I used this boost mod....This is one example of what you can do, in this example I used the JS3 output from the MS-I CPU as the input into this circuit (telling it when to switch on/off) and the output routes to Jmp SPR1 which sends the signal out to the DB37 on pin3 which is a pretty good choice since on the v3 it’s not used for anything else. You’d then use pin3 on the DB37 to control your relay which controls your electronic doodad of choice — electronic fan.
Same here:
https://www.diyautotune.com/wp-content/ ... 00x355.png