Dave Smith Instruments SYNTHESIZERS

Hello,

The thinking is not right.

Putting a resistor in series with your batteries just
throttles the current flow.

The Evo (desktop) needs about 750 mA of current at
13.6 VDC (output rating of wall-wart). Nine-volt
batteries aren't capable of supplying 3/4 of an Amp of
current. If it works at all, it will be for a very
short time.

You might want to research battery packs (of the
appropriate voltage) used by camcorders or
photographers. This may be a better solution for
battery operation.

~ Jonathan
www.lbop.net


--- DSI_Evolver@yahoogroups.com wrote:

Message: 3         
   Date: Tue, 25 Oct 2005 00:14:21 -0000
   From: "rgmccaig" <rgmccaig@...>
Subject: making a simple battery pack?

If I took 2 9v batteries in series to create 18V, plus
a resistor in
series to lower the voltage, could I plug that in to
run my Evo?

I am thinking the load of the Evolver is 15V / 0.5 A =
30 ohms?

So a 10 ohm resistor in series with the evolver would
take 1/4 of the
18V, ie 4.5 V, leaving 13.5V for the Evo.

Anybody know if I'm thinking about it the right way?


		
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