[sdiy] Famous Fixed Filters - FFF PCB ?

[Mike]

> this is just my opinion, but why not take a slightly different approach :
> the 160 * 100mm board would be a motherboard with some "management"
> circuitry (VC-mix, VC filter selection, etc) and a bus, and each filter
> would
> be on a daughterboard... This way everyone could choose which filter he
> wants (and possibly have several copies of the same filter) while the
> management circuitry would offer all generic control facilities, no matter
> which
> filters have been implemented by each user...
> I'm writing this at lightspeed but I hope I made it clear...

This is the way I was thinking, but in my case I envsiaged a section of
eurocard rack, with guides and a simple (like veroboard) backplane. we agree
a standard pinout using the DIN 41612 connectors, and then filters can be
plugged and played with.

I've started something like this with some synth modules, using a piece of
perfboard as a carrier/connector for small module boards. I put the power
decoupling etc on the carrier, and set up standard pins for +/-12, +/-15,
5V, grounds, keyboard control voltage, gate, trigger etc. with 32 pins there
are still plenty left.

I mend a lot of industrial control gear, and this type of thing is standard,
and the connectors survive some very hostile environments.

Mike