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Is there software that can convert schematics to a circuit board design? I have some schematics that I want to see if I can make a circuit board from (perhaps to 'recreate' the device that schematics

Is there a book on schematic symbols? I have schematics for a TI-99/4A and trying to create a circuit board using software from exprespcb (http://www.exprespcb.com [IIRC]).

Hi Dough Hale, Do you have any experience to replace vacum tube with power MOSfet...??? Thank you

You're talkin' about the "Philidelphia Experiment" I think. A movie was made about it. It even has that name for a title. Curtis Dazzle Mom this coming Mother's Day season with flowers!

Question: Why is the current waveform sinusodal despite the voltage output being non-sinusodal?? How are you measuring it?? I would think it'd be

Got it. I'll try modifying future mail so you can see it. Curtis Dazzle Mom this coming Mother's Day season with flowers! http://www.flowerson55.com

I think we could be getting into a semantic war with this thing. So .... instead of my talking anymore ... please ... everyone open up the *.bmp attachment of this email. THIS .... is what I saw on

Much agreed. Those were the days of individual still able to get a lot of parts (no need to be a shop). Also when Auto emissions were not such a big deal (hotrod .... DIY Weber Carbs ... headers ...

I used to work fixing stage-n-lighting light dimmers. We used oscilloscopes triggered by the incoming line AC. The output sine-wave never shifted left and right as dimming was varied. Just the sharp

Anyone thought of using a standard audio power amp with say, +/- 50 supply rails?? Then a sine wave oscillator could simply be hooked up to drive it. Another idea would be to use a class-D audio