Bench AF Amplifier. Schematic Diagram.
The circuit… This circuit consists of just a few discrete components and one common IC amplifier – the LM380N. It’s simple, cheap, quick to build and works well. I built mine in a steel,...
The circuit… This circuit consists of just a few discrete components and one common IC amplifier – the LM380N. It’s simple, cheap, quick to build and works well. I built mine in a steel,...
Starting with the EMRFD Fig 2.57 amplifier as a base, you can measure input returnloss using a return loss bridge. Return loss can be translated into VSWR and impedance. If the return loss is...
One of my favorite circuits uses a bipolar transistor with two forms of negative feedback. One is parallel feedback in the form of a resistance from the output collector back to the input base....
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