Fuzzy Balls PCB?

[SirPoonga]

Anyone have a PCB layout for Fuzzy Balls?

[David]

Note to self:  Thou shalt NOT make a dumb pun and spoil thy fellow forum-dweller's thread!

[SirPoonga]

Anyone?

[dr]

.....I don't have a layout, but I have the schematic from  http://members.tripod.com/urekarm/index.html

[Mark Hammer]

The FB is a nice experiment, but way too complicated for what it does, and really more of a showpiece than hunk of practical equipment.

On the other hand, the E-H Baseballs, on which it is based is ridiculously simplified for what it is capable of, so there is every reason to add controls to the basic unit, and expand whatever layout you can find.  There were layout for Baseballs clones posted around (though one had an error I think).  If you can find one, a few mods will put it more in the cirection of the FB while avoiding the $50 of pots and knobs, and rack panel, that thing wanted.

On mine, I have added a few features which make it quite flexible, but still quite usable.  I moved the trimpots to chassis pots for retuning the filter sections and staggering them a bit.  Changes the flavour a lot.  I also replaced the simple voltage divider in the "fuzz" circuit with a diode clipper for fuzzier fuzz and better level control.  As I am known to do, the attack resistor is replaced with a pot for variable attack time, and an extra decay cap added for some extra lag when desired.  Finally, I routed one of the filter sections to a second output via a toggle so that I can use both or one filter, use them in stereo, or combined in mono.

There are plenty of other things one can add, but on mine, a few simple mods delivers a whole lot of return for little investment....and you can still fit it in a 1590BB with room to spare.

[RickL]

I've just finished up a BB with all of the mods Mark mentioned (except a switch to route the second filter to a second output). I added two extra filter sections with different filter caps and switches for each filter so any combination of the four filters could be chosen. I also made the fuzz section switchable between Mark's mod and stock and replaced the voltage divider in the stock fuzz section with a pot/series resistor combo.

Highly recommended.

[SirPoonga]

Links?

[SirPoonga]

Mark, I went to your website, you just have a pic of the box.