Pre selector with varicap tuning (CB9172E)

This circuit for the medium wave range was suggested by a Popular Electronics from the 90s. The double port MOSFET is an unusual component today.

| Clique na imagem para ampliar |

Short circuit test (CB7945E)
We have articles on the site with the name “lamp test” for this configuration found in a Popular...
Differential Amplifier and 15 MHz Low Pass Filter (CB12934E)
The circuit we present is suggested by Linear Technologies (www.linear.com) and makes use of an...
H Bridge bidirectional sensor (CB5397E)
This current sensing circuit for applications up to 10 A has been found in a Linear Technology...