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    MultiSim: AKA Circuit Design Suite, Student Edition Librarys

    circuit design suite student edition I'm a student so naturally I got the student edition of Multisim. The problem I'm having is I find I can't layout even the simplest circuit, because there are only a handfull of components in the libraries. As soon as I get started I find that I don't have...
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    Help learning Diseqc control?

    I posted in elementry, but maybe this is a better place for it. Its been quite a while since I posted here, but I've always had good luck getting help, so here goes again... My latest hobby interest has become Diseqc control of satellite devices. For those not familiar, Diseqc. "digital...
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    Help, Learning Diseqc control

    diseqc Its been quite a while since I posted here, but I've always had good luck getting help, so here goes again... My latest hobby interest has become Diseqc control of satellite devices. For those not familiar, Diseqc. "digital satellite equipment control". Its purpose is to send a signal...
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    Motor speed control for small 120V. AC. fans?

    shaded pole motor speed control I may be asking to much. I'm looking for a simple circuit to control the speed of a couple small AC muffin fans. I've tried lamp dimmers, and they just don't work, they are very eratic and nonlinear. I've done dozens of searches, and came up with only a few...
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    need a power transformer 120vprimary 12v, and 36v secondary

    36v power transformer I'm trying to convert a sat positioner box by replacing the 220 volt input transformer with a 120 volt input transformer. I don't have definate specs on current, but something like this should be fine: 120 v primary 12 volt secondary at about .5 amps 36 volt secondary at...
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    STI-5500 -> external AC3 decoder ??

    I have been playing with my old Pansat300a receiver for a while now. Some time back I managed to crash the firmware trying to upgrade using the wrong software version from the pansat site etc... Well its up and running again. So now I'm looking into the possibility of adding an SPDIF output to...
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    understanding data sheets on memory

    sti5500 schematic I'm looking at a data sheet for a hy29f400bt bottom boot sector 4 meg flash memory chip. Trying to figure out the absolute address at the begining of memory and all I've figured out is I don't know what I'm looking at. Actually I'm looking at this data sheet because I know...

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