Powerful IR Emitter (CB26030E)

This modulated circuit was found in the November 1997 Electronics Now magazine. The power transistor can be any MOSFET,

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Multitester (CB3834E)
This simple multitester tests continuity, semiconductors, leaks, and other common component...
High Input Impedance Amplifier (CB4027E)
This configuration can be implemented with equivalent operations. The circuit is from the 1990...
Tesla Coil (CB26185E)
This circuit is one of many that we have in our section. It was taken from the Electronics...