Darn it ! This shoulda worked !


I tried the circuit shown. The aim was to give the option of either a bright top-end or a normal top end. I'm sure i wired it up properly, but there is basically no discernable difference between bright (about 13.7ohms in series) and normal (34ohms in series).

I'm puzzled :-?

piezo is ksn 1142/1151 horn


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