Ready References
Signal Conditioning and Data Acquisition Basics
AAVSO Observing Programs
Notes on the Construction and Design of Instruments and Apparatus
Optics: Light Sources, Filters, and Optical Instruments
Laboratory Optical Work
Preventing and Handling Chemical Accidents
Rocks and Layers
Ready
References 
Signal
Conditioning and Data Acquisition Basics 
Notes
on the Construction and Design of Instruments and Apparatus
Optics: Light Sources, Filters,
and Optical Instruments 
