MOTM

Bench triple supplies generally use a *variable* +_ supply (usually 0 to 20V) and a variable 0 to +6V supply. MOTM uses +-15V because that allows more headroom than +-12V (Euro standard). Can you run MOTM modules off +-12V? The anser is yes BUT (and this is a BIG BUT) you will not get the expected results. Can MOTM modules be modified to work on +-12V? The answer is yes BUT every module will have to be individually modified in different ways, some are a LOT of work while other may be 3 resistor changes.

There are 100s of variable triple supplies on ebay.

{aul S.


--- jackv@... wrote:

From: Jack VanAken <jackv@...>
To: MOTM List <motm@yahoogroups.com>
Subject: [motm] Power supply newbie type question
Date: Tue, 13 Oct 2009 20:43:05 -0700

I've been -gradually- getting started on the DIY side of things and  
have relied considerably on the
(no longer available, but I saved a copy,) Synth Tech Tutorial/
Resource page for tool suggestions, and I have been wondering
about Paul's recommendation: "A stable, regulated power supply for  
testing. I STRONGLY suggest buying a linear supply.
It needs to be a "triple output" (+5, +12, -12). I like the Elpac  
Model WM220-1."

Question, why/how is a +12/-12 PS acceptable when MOTM (format)  
modules are rated for +15/-15?

tia,
Jack


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