I need to cut the voltage going through a 1/4" TRS cable (at the connector) by 1/2 (and I need to do this to about 14 cables). I understand that this can be accomplished with two 4.7 kohm resistors per cable; however, I have never soldered before (although I've always been interested in soldering and this seems like a simple enough project -- the need happens to have presented itself). I was wondering if anybody could give me some pointers. I've managed to find a reference schematic but it doesn't really make sense to me (there seem to be more than two resistors -- that is two R1s and two R2s):
Other than help understanding exactly what needs to be done, I was wondering if anybody could recommend any soldering irons and other equipment or supplies (shrink tubing, etc) for a newbie to buy. What exactly will I need to make this appear clean (not as if the cable was never tampered with, but at least semi-professional looking)?
Thanks, - KP
P.S. If I could use two 4.7 kohm resitors to multiply the voltage by 1/2 what resistors could I use to multiply the voltage by 2/3 (remove a third voltage) -- I imagine based on the information I've gathered that the two resistors would have to be different values. I am doing this to cut the voltage coming from electronic drum pads, and from what I've read the tom pads don't need to be cut down as much as snare, kick, and cymbal pads.