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RE: Al Sekala's R-C , second build

Here is a picture of my implementation. I might have gone a bit overboard with the casing but it seems to work well.

I did a later mod, adding resisters in parallel to change the amount of resistance. Originally I had 120ohm, but reading some of Al's later posts led me to experiment. I only had limited values available to me, but tried 107ohm, 110ohm, ~111.7ohm, 113ohm, as well as the original 120ohm.

I found the ~111.7 ohm sounded the best, so stuck with that. I think the ultimate implementation might have fixed 105ohm resisters and a 3 gang pot to allow manual setting of values in the 105-115ohm range (at least based on my experiments).

I've got the parts to try the speaker version next, but might just go with a plastic casing and no PCB.

All the best, thanks for the idea Al.








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