Hello Everyone,
 I am a junior in college and last summer I build a
seismograph for a school project.  The amplifier and filter
work great together, but when I connect the power supply to
the amp. and filter the system doesn’t work.  At the end of
this email I have provided the URL's for the schematics of
the amplifier, filter, and the power supply.  
 Currently, the amplifier and filter are using a quad
power, power supply, but I would like to build my own power
supply.  My question is, Does anyone know of any power
supply schematics that would work with my amplifier and
filter?  


Amplifier and Filter:
 http://users.viawest.net/~aloomis/seisfilt.htm

Power supply:
http://users.viawest.net/~aloomis/seisprea.htm

Sincerely,

 
Charles Staniger
President, Carthage College Habitat for Humanity Chapter


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