I have a fairly basic variable speed cordless drill with adjustable torque and hammer action, with a 14V motor I think.
Recently the variable speed stopped working. All other functions are fine and the drill operates fine at max speed.
I understand that the linear potentiometer trigger mechanism which operates as a speed controller may be worn, but is this worth replacing?
I bought the drill for about £20, any ideas on how much a replacement part as above might cost?
I have also read that you can use an "inexpensive external motor speed controller" what is this and how inexpensive is "inexpensive"?
Many thanks,
Tanel.