Hello John,

Wednesday, February 13, 2002, 10:28:11 AM, you wrote:

TL> What I need is a 1-channel AD for use in schools.
TL> The DATAQ DI 151-RS was ideal for school seismometer use, as
TL> it could be used with the excellent software provided by DATAQ
TL> with the unit or with Alan Jones'  AmaSeis software.  I would like
TL> to see developed a very simple seismometer for classroom use
TL> that when combined with an AD and AmaSeis would register
TL> teleseisms from around the world.  If the cost of the entire
TL> package (seismometer, amplifier, AD) can be kept under $150,
TL> then this instrument could be proposed for use in the Globe
TL> program.

Have you check out David Saum's stuff,  I think that you could easily
get under the $150 for the whole setup with his amp, adc, filter and a
geophone.

angel

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