Useful Charts and Guides
Ethernet RJ-45 pinout
Blank ham radio log page
The Family of 6146-type tubes
25-pair Telephone cable color code
Three Terminal Regulators
AC Voltage Measurements and Conversions
Audio Attenuator Pads
Audio Dividing/Combining Pads
Audio Splitter-Combiner
Capacitor Markings Chart 1
Capacitor Markings Chart 2
Coaxial Transmission Lines
Decibel Calculation Chart
FM Channel Allocations in the US
Useful Formulas
LM386 IC spec sheet
RS232 9- and 25-pin connector pinouts
RS232 null modems
Parallel Printer Pinout
PowerPole Standard Assembly
Gentner VRC-2000 command list
VSWR versus Power Ratio from Bird 43 manual
Maxon CA-1112R PL CTCSS encoder
Maxon CA-1112C PL CTCSS encoder
iPhone phone plug pinouts
GE lamp catalog
Miniature lamp list from Newark catalog
Miniature lamp specification list
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AC Voltage Measurements and Conversions 
Capacitor Markings Chart 1 
Capacitor Markings Chart 2 
iPhone phone plug pinouts