BC109 FOR LTSPICE

Audioguru again

Joined Oct 21, 2019
6,167
The very old BC109 transistor is about 67 years old. Use a newer transistor that has a model in LTspice.

The simulation uses only "typical specs". Real transistors have a wide range of specs then some circuits you build will not work since the transistors you buy will have minimum to maximum specs.
You must design a transistor circuit with negative feedback to reduce the wide range of specs.
 
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