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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Delayed Pulse Generator (CB25729E)
Delayed Pulse Generator This can be considered an "advanced" application where two 555 integrated...
Timer up to 25 Hours (CB4661E)
We found this circuit in a 1994 publication. It makes use of a divider for 16 384 CMOS type 4060. By...
Precision Full Wave Rectifier LM741 (CB25220E)
This buffered version of the previous circuit appeared in an article in the September 1989 Radio...