MOSFET Switches (CB21260E)

These are drive circuit using power MOSFETs. We found it in a Popular Electronics from the 90s.

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Amplifier for light beam (CB26241E)
This circuit for link or alarm was found in the Encyclopedia of Electronic Circuits Volume 5 of...
Siren for motorcycle (CB6491E)
This circuit is from a Popular Electronics of the 90's. Any power MOSFET can be used. The circuit...
Circuit for milliammeter (CB22310E)
This circuit extends the scale of a milliammeter. We found it in a documentation from the 60's. The...