Source Follower (CB6153E)

This stage for JFETs was found in a 1965 US publication, but is valid for modern components.

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AC and DC High Current Meter (CB4463E)
This is a shunt circuit to be used on a multimeter, expanding its scales to measure high currents....
Output stage with the AC117 (CB4278E)
This step is also suitable for the AC188k and SK3004 transistors and was found in a 1980s...
High Quality Preamplifier (CB823E)
This high quality audio preamplifier uses three bipolar transistor and is powered from 24 V...