Here are a couple I found in the Marlin P. Jones catalog: 800-652-6733 www.mpja.com 12664-PS: Used linear supply in a sealed box +15V and -15V each @ 350 ma box size 3 1/2 X 2 1/2 X 1 7/8 $7.95 8994-PS: new power supply kit +12 V and -12 V each @ 250 ma 5" X 2" X 1 1/2" $16.95 This is the same catalog where several of us purchased nice surplus power one supplies for $20. Of course, that supply does not meet your size requirement. Larry H ----- Original Message ----- From: Nathan Alan Hunsicker <nate@...> Ok, I'm looking to build a small (18 note) pedal controller for my MOTM. I have the mechanicals and I was looking to use the keyboard schematic from www.xavax.com. It requires + & - 12V supplies. I know that switching power supplies are a big no-no for powering oscillators and other voltage sensitive modules, but would one be ok to power this circuit? I really want to stay away from using the power one supply for the MOTM, I'd like to keep the two independent of each other. The other problem is a size limitation, unless I go outside the chassis I only have a 3.5"x1.5"x12" area to fit this power supply. I was looking at the Lambda KWD series and the TDK FCP series, but they are both switching supplies. Should I build an external linear supply? Also, what kind of current would a circuit like this require? I'm sorry for all the silly questions, but all my electrical engineering experience involved prebuilt components (opto boards, motor controllers, pneumatic switches) so when it gets to the component level, I get lost easily. -Nate
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Re: [motm] OT: last PS question, I promise!!!
2000-09-19 by J. Larry Hendry
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