Lockbox Powersupply

Description: 12 plus minus 12 volt powersupply

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Files

lockbox_power scott bernardi.gif
	Schematics for teh lockbox powersupply

Parts used

TL431
	Programmable Shunt Regulator
LM7812
	3-Terminal 1A Positive Voltage Regulator
LM7912

2N3906
	PNP switching transistor
2N3904
	NPN switching transistor
TL074
	Low-Noise JFet-input Operational Amplifier
1N4001
	General Purpose Rectifiers

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