MOSFET Amplifier (CB24981E)

This high-power circuit was found in July 1986, Radio Electronics magazine, requiring a high-current source. Equivalent MOSFETs can be tested

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Photometer (CB17052E)
This simple Bargraph photometer with 4 LEDs was found in a 1997 documentation. The scale is...
Logic Probe with Memory (CB5909E)
This 7400 TTL circuit has a memory, keeping the LED on when a pulse is detected. The circuit must be...
Bilateral Current Source (CB14116E)
This constant current source was found in the Linear Applications Handbook of the National...