The hallicrafters HT-9 manual scanned at 300DPI is free online here:
http://www.bunkerofdoom.com/lit/ht9/ht9_manual_dist.pdf - 24MB
Other recent materials posted:
MIT Radiation Laboratory Series (28 volumes) -
http://www.bunkerofdoom.com/lit/mitser/index.htmlHughes 104-D memo-scope manual -
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http://www.bunkerofdoom.com/lit/singer/index.htmlSinger SSB-50 system (0-40MHz) manual -
http://www.bunkerofdoom.com/lit/singer/index.htmlShallcross 673-D Milliohmmeter schematic and notes -
http://www.bunkerofdoom.com/shal673/index.htmlAll About CRT Phosphors (freshly researched 8 page chart) -
http://www.bunkerofdoom.com/tubes/crt/crt_phosphor_research.pdfEimac 1950's Vacuum Tube data (also incl. HV-1 diffusion pump, etc) -
http://www.bunkerofdoom.com/tubes/eimac1/index.htmlColor Monitor Test utility free from Nokia(help set aspect ratio, resolution, and check colors) -
http://www.bunkerofdoom.com/ntest.exeThank you for your support.