After my attempts of looking for a cheap ready-made resistor strip of a pre-defined value failed, I tried to search for a modification of The Synthstick that would allow me to make a fixed size strip alter a fixed resistance of 5k without having to compromise by adding or taking way some of the length of the strip.
Anyway, I admitted defeat and tried a different approach.... 8)
Its easy to make and should act as a variable resistor of any desired value and can be any length you like!
(http://www.inquisitiveworld.com/resistor_strip.JPG)
As long as the first thing you do is decide on the length of the strip, the rest is a simple maths calcultion to discover the amount of resistors you will need, and what value.
The end result should look like a commercially made strip as the black rubber will hide what in my case is known as my shoddy DIY efforts. :)
As long as you ensure that the protruding solder on the underside of the board s as thin as possible ad of uniform height as the rest of the perfboard locks, then the pad should feel just as professional as a pad on one of those expensive stereo systems or a midi pad.
A chrome cover with a rectangular square cut out exposing the rubber would also look really cool.
Feel free to rip this thing to pieces but nonetheless, a decent idea to think about....
Thanks
John
Nice, John! Whatabout when the foil touches two resistors though? That would result in a decrease in resistance... But if the foam's high enough it should be OK... nevermind I'm ranting again :mrgreen:
Nice work!
Thats a decent point actually, I mean, an average person's fingertip is at least 1 cm wouldn't you say?
A way of compensating for that would be to increase the spaces between the resistors and increase the height of the foil from the board I guess...
However sucess is limited... :?
Hmmmmm..
Thanks
John