Headlight flasher 555 (CB26290E)

This powerful pushbutton uses a power MOSFET. We found it in a Popular Electronics magazine from the 90s. The MOSFET must be mounted on a heat sink.

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Darkroom photometer (CB8344E)
This circuit is from the time when photos were revealed in darkrooms. We found it in a 1968...
Negative Edge Differential Differential Amplifier LM3900 (CB4039E)
This circuit was found in the 1990 Motorola Linear Databook and can use almost any operational...
Emitter follower (CB6811E)
This emitter follower simulator circuit was obtained in a 1964 documentation. The circuit can be...