[Lowfer] Schematics

[Bill Ashlock]

Lyle states:

>For prettier drawings, I use the schematic capture portion of the >MicroSim 
>DesignLab demo. Unfortunately it has been discontinued and >you can't get 
>the free demo CD any more.

ORCAD has taken over the MicroSim DesignLab Pspice and it's available free 
at http://www.orcad.com/products/products_f.htm   The CD is also free if you 
want to order it on this site. Select the 'student version' download at the 
bottom of the page. This version is even better than the older MicroSim 
product, especially with faster computers and much more RAM than we had a 
few years ago.

In case you have never used these products this is a click and drag program 
where you put components in place from a fairly extensive library and you 
wire them up via mouse-generated lines. After selecting the desired analysis 
mode you click on Analyze and in seconds view the frequency response, 
voltages, and currents, just as though you had set up the circuit on the 
bench. Then you can play around with the component values to optimize the 
performance. I have found the simulated results match the actual circuit 
performance very closely.

Bill

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