[sdiy] Spice vs Real World

[James Patchell]

Hmmm....

         About a week ago Don posted some links to some alternative ladder 
filter circuit patents.  Well, I have built up one of them two ways.  I 
used spice (Linear Technologies Switcher Cad), and real parts.  The spice 
simulation seems to work as expected...the real circuit does not....at 
least, so far.

         The one I am building is a two pole band pass circuit.  It sure 
looks reasonable.  Most likely, I have an incorrect connection on my 
breadboard (this is extremely likely, since I have already corrected 3 
mistakes), so as soon as I get some time, I will rip it up, and start over 
again...sometimes that seems to work better than trying to figure out what 
is wrong.  Not being able to see close up seems to be getting to be a 
rather big pain in the .... eyes...


         -Jim
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http://www.oldcrows.net/~patchell

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