string filter bank (was: Re: [sdiy] 40-band vocorder)

[JH.]

>Man, that thing is fantastic!!  The vocal stuff is cool, but the tuned
>resonant noise is what has me all excited.
>
>One question, though:  Am I the only one who thinks that this would have
>been a perfect candidate for a panel PCB with PCB mounted hardware and pin
>connectors to reduce/eliminate the extensive panel wiring?  Would using 
>such
>a PCB compromise the quality of the sound in some way?

I don't think you really need shielded cables.
4 thin wires to the cw ends of the pots, summing resistors soldered to each 
wiper pin,
and a bus for GND and the summing node ... summing node passive, with 40 22k 
resistors from 40 10k log pots, and a single 100 Ohm resistor from summing 
node to GND. Then, from this summing node, *one* connection with shielded 
wire, to a microphone input of the mixing console - that would do it!

(I still have a couple of String Filter boards left, but not many.)

JH.