30 MHz Amplifier (CB5939E)

This low noise circuit was obtained from a 1980s US RF publication. Transistors used are uncommon today and the gain is 19 dB..

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Variable Reset Ramp Generator (CB5930E)
This circuit can be controlled by an external signal which allows its use as a shield. The circuit...
48V Hot Swap Controller (CB5239E)
For a negative voltage of -48 V, this circuit from the 2005 Linear Technology manual makes use of an...
Adapter for testing transistors (CB3905E)
The purpose of this circuit is to enable testing of transistors using a common multimeter. With the...