Archive of the former Yahoo!Groups mailing list: Modular Synth Panels

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Subject: Re: [ModularSynthPanels] tau pipe red/green led wiring?

From: Mark <yahoogroups@...>
Date: 2008-05-06

On 5/6/08, loopcycle put forth:
>
> > >Sure I can do that, but I probably need you to tell me how. =)
> >
> > Well, do you have a meter that can measure current?? That's a very
> > important first step :)
>
>
>i do have a digital multimeter handy =)

OK :) That's important :) Now switch it to measure DC current, and
select the correct range. If the range is too low, you are likely to
blow a fuse. Mine has a settings of 4mA, 400mA, and 10 A (the 10 A
setting uses a separate jack), so I would select 400mA.

To measure current you need to break the circuit, and patch the meter
in series with the load. Since this module uses a bipolar supply,
you need to measure each side separately. So run two wires --
between the ground connector and ground, and between the positive
voltage connector and the positive supply, then use each lead from
the meter to connect the negative supply, so the current runs through
the meter. Read what it says. Then do it for the positive supply.
I hope that makes sense :)