Has anyone tried connecting a Cointaker Shaker or Stern Shaker to a POTC? (They sell these for $100 vs pinbits high prices).

Is the input voltage different? Is it VAC? I do know there motors are 12 VDC.

I was looking at trying a Cointaker with an adjustable speed controller. Maybe I don't even need Cointaker printed circuit board. Just use the adjustable speed controller hooked directly do the motor and the potc 20 vdc ship flasher.

1. Adjustable speed controller ($3):
ebay.com link: DC Motor Pump Adjustable Speed Controller PWM Regulator 6V 9V 12V 24V 3A knob

2. Cointaker Motor (or use Stern motor)...and through away their PCBA.
http://cointaker.com/products/shaker-motor-stern

3. Also, if the adjustable speed controller does not adjust voltage (I believe it only adjusts frequency-pulse)...I can purchase this DC converter ($3)
ebay.com link: High Power Step down module DC5 36V to DC3 3V 9V 12V Adjustable Converter Board

Anyone have thoughts on this - has anyone tried it?
thx.

Can someone take a picture of the pinbits AFM shaker printed circuit board with and without the connectors installed on the pinbit printed circuit board and post. Also, if you have any paperwork, with circuit that would be great to post also. I am looking on how to install a used one.

thx