<p>Casper:  Thanks. just read this.  I got it to work but slightly different order:  I finaly went screw/plexi/ circuit board/nut w no washer/back/lock washer/rubber foot /and nut. I really had to push the nut into the foot with the tip of slightly opened fine pliers to get an even pressure.  It almost looked as if there was a back/front to the buts and when I flipped them they worked. Droning along nicely. like the bandpass circuit!
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