Wireless Infrared Handset (CB20980E)

This circuit is from a Popular Electronics from the 90's. The audio amplifier admits equivalent. The others integrated are not very common today.

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Voltage Reference with the LMV321 (CB4744E)
In the figure we show how to implement a voltage reference with the ON Semiconductor rail-to-rail...
FET Voltage Regulator (CB12306E)
This circuit is from a technical documentation from 1978. The maximum output current is of the...
Audio signal follower (CB10028E)
This RF and audio follower applies its signals to a small amplifier. The FET can be any...