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Transistor Base = Tube Grid
Transistor Collector = Tube Plate
Transistor Emitter = Tube Cathode
For basic NPN transistor.
But tubes are Voltage Amplifiers with near infinite input impedance, and your
basic transistor is a current amplifier.... I think its FETS that are close to tubes
in the respect to no base current. Coupling is coupling as far as signal goes....
because it is amplifier stage to amplifier stage, so its ac signal coupling.
And there are books where you can find the same stuff but with tube examples.
They may just be a little harder to find...
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Yes you can call me "Squirrel boy"
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