AW: MOTM Jack-a-mania

Paul Schreiber synth1 at
Fri Jan 30 13:41:03 CET 1998

The power supply is adjustible to +15V, if you want to. The modules really don't care. All of the CEM chips have on-chip 6.8V zener supplies. All critical stuff is fed by constant current sources, NOT a resistor tied to a supply.

Paul Schreiber

From: 	media at[SMTP:media at]
Sent: 	Friday, January 30, 1998 12:05 PM
To: 	synth-diy at
Cc: 	Paul Schreiber
Subject: 	Re: AW: MOTM Jack-a-mania

>	>My drawback against 1/4" is the patch cables are a) heavy b)
>expensive c) expensive d) >expensive
>Hmm, I use these HOSA 1/4" cables a lot. They come in various lenghts,
>various colors (easy to track a patch), they are neither heavy nor
>stiff, and they are so cheap that I don't care soldering cables myself

I have to agree that 1/4" is the way to go.  First off, 1/4" patch cables
are not expensive, dozens of companies make them, and everyone already has
piles of them in their studio.

Secondly, it is very hard to find high quality 1/8" cables.  With 1/4" you
can buy cables in almolst any price range and configuration.  If you want
foil shielded cables with miniature plugs you have to build them yourself
or get them  made to order (which is more expensive than buying 1/4" off
the rack).

The trouble with bannana and miniature phone jacks is that you need
adapters for the rest of the world.  I'm sure many people out there have
another modular or semi-modular (like an MS-20 or EML-100) that uses 1/4"

>Lastly, several have asked about the power supply. I am using a
>pre-assembled, 723-based supply that is
>UL listed, 110/220V, and you can get them from 10 different people. They
>are +-12V @1A.

Would these modules also work with a +-15V supply??


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