User:Ron Broberg
Hollow Lerd
Variable Regulated Power Supply (Tony van Roon)
Ron_Broberg/Projects/Variable_Voltage_Regulator (Project page)
http://www.sentex.ca/~mec1995/circ/VarReg1/VarReg1.html
The circuit to the 'left' of C2 can be replaced by a computer ATX power supply.
The circuit to the 'right' of C3 can be replaced by an external voltmeter.
The center part of the circuit seems to be a fairly common configuration for use of the LM317.
555 based solar charge controller project (Mike Davis)
http://www.mdpub.com/555Controller/
Built, not yet tested
Chispito Wind Generator (Abe Connally)
http://makeprojects.com/Project/Make-a-Wind-Generator/9/1
Built, not yet tested
Based on treadmill motor, 3' blades, 28 sq ft swept area
6 to 15V DC to DC converter using LM2585 (Circuits Today)
http://www.circuitstoday.com/6-to-15v-dc-to-dc-converter
Under Creative Commons License: Attribution