Description:
1>. IN + input positive IN-enter negative!
2>. OUT + output the positive OUT-output negative!
3>. Note that the input and output can not be reversed. Reverse may burn out!
4>. Input: DC 3V to 40V (input voltage must be higher than the output voltage to 1.5v above can not boost)
5>. Output: DC 1.25V to 35V voltage continuously adjustable, high-efficiency maximum output current of 3A.
6>. PCB size: 45*20*14MM (L*W*H) (with potentiometer)
7>. Adjustment using the 3296 adjustable resistance.
8>. The characteristics of the low price, small size, and relatively simple function.

Tested by ICStation's Outstanding Customer Don Eduardo:
https://hackaday.com/2018/01/05/power-your-guitar-pedals-with-drill-batteries/