Crowbar for power supply (CB8367E)

This protection circuit was obtained in a 1969 Electronic Design. The SCR can be the current equivalent, depending on the fuse current.

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Battery Monitor (CB6398E)
This circuit was originally found in a Philips documentation from 1969. It is intended for sensing...
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This circuit is obtained from old documentation, activating it when there is a power cut in the...
Negative Output Monostable 555 (CB13824E)
This circuit is from a 1977 application manual for timers. The circuit provides a negative pulse...