plating and anodizing

Information about the voltage comparitor -- Maxim MAX923

http://www.maxim-ic.com/at-a-glance.cfm?qv_pk=1218&ln=en

http://pdfserv.maxim-ic.com/en/ds/MAX921-MAX924.pdf MAX923 Data Sheet

http://www.maxim-ic.com/appnotes.cfm/appnote_number/886
Application note on building a dual comparitor voltage monitor.


http://www.linear.com/pdf/144012fa.pdf

Dual comparitor with reference... Linear LTC1442. Lousy data sheet.
These are pin compatible with MAX921/922/923

http://www.fairchildsemi.com/ds/MO/MOC3031-M.pdf

Fairchild Zero Crossing SCR Triac Driver -- MOC 3031M and 3041M.