Archive of the former Yahoo!Groups mailing list: MOTM

Huge thanks to Scott for taking on the MUUB project. This is something I
have wanted to do for a long time, but simply have zero time to consider
adding one more product to the Stooge line. The project has evolved since
my original desire to do it, mostly thanks to input from Richard Brewster
and Scott's hard work. The original idea belongs to Thomas Henry who many
years ago sold a small size dual op amp PCB he called the utility knife.
Sadly, these are no longer available. But, the MUUB-2 has all of that and
more. The MUUB-4 is just twice the fun.

When you need a small mixer, input or output buffer, reversing attenuator,
need to add or subtract gain, the little op amps often make the job very
easy. While it does not sound all that sexy, it really does clean up a lot
of modifications and make easy work of many common op amp circuits.

The design contest a cool idea. I thought Scott was the one that thought of
it. I have a very cool design that uses one each I know several of you will
be happy to see. I do plan to make it public but not to enter it in the
contest (no conflict of interest here). :-)

BTW, my original name was Multiple Use Utility Buffer, but it somehow
migrated in the process (or in my feeble memory). And MUUB is pronounced
like the "wrong" way to say pronounce "Moog."

Stooge Larry

-----Original Message-----
From: Scott Juskiw
New on the list of available PCBs is MUUB, the Multi-Use Universal
Buffer. MUUB is a general purpose PCB that can be used to create a
variety of op-amp based circuits for creating new modules, or adding
enhancements to existing modules. MUUB is another group effort by
Richard Brewster, Larry Hendry, and myself. MUUB comes in two sizes:
MUUB-2 contains one dual op-amp, MUUB-4 contains two dual op-amps.
When putting this together, I had a look through Jung's op-amp
cookbook and Craig Anderton's books and found well over two dozen
useful circuits that can be created using one or more MUUBs. I've
also brain stormed several new utility modules and enhancements to
MOTM modules that I'm planning to publish over the next few months
that use MUUBs. I will write this all up in the MUUB user guide,
someday, when I get a chance. And I'm sure that Larry and Richard are
also working on some interesting MUUB designs.

In the meantime, Stooge Larry suggested we have a circuit design
contest to build up a pool of MUUB circuits. I think this is a great
idea and I've put up the contest rules on my website (along with all
currently available MUUB documentation):

www.tellun.com/motm/diy/muub/muub.html

Anybody can enter, since there's only one judge (me), there shouldn't
be any collusion. I won't publish any of my own designs until after
the contest.

Scott J.