How to Make Cheap Thermal Goggles
Drill press for ~$20
DIY PCB lab for under $35.00
Image titled Etch a Circuit Board Step 7
Switched Mode Dual Variable Power Supply
Schematic Symbols Chart | Wiring Diargram Schematic Symbols from April 1955 Popular Electronics ...
http://www.talkingelectronics.com/projects/100 IC Circuits/1-100_IC-Ccts.html
And the resistor color strength goes... B, B, R, O, Y, G, B, V, G, W just in case you didn't have a manual handy.. Blah Blah Resonant frequency is? f= ? Good work!!
High Power 600 Watt Quasi Amplifier Mosfet IRFP460 - HQEW.net