Calculation of input tube parameters for grid & cathode circuit

 

 

 

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  GRID PARAMETERS
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 Anode current maximum pk.(A):...............................1.034

 Anode current of the first harmonic pk.(A):.................0.531

 Minimum bias voltage providing zero-signal current,(V):.....-35

 Maximum grid voltage providing maximum anode current,(V):...0

 Factor reducing input resistance of the grid:...............5

 Additional factors:.........................................0.2
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 Driving RF voltage pk.(V):..................................35

 Maximum current of the first grid,(A):......................0.207

 Grid current of the first harmonic,(A):.....................0.062

 Average current of the first grid,(A):......................0.031

 Driving power (losses in the input circuit
 are not counted),(W):.......................................1.086

 Dissipation power of the first grid,(W):....................0

 Virtual resistance of the first grid,(ohm):.................564.152

 Additional resistor connecting to the grid-cathode circuit,
 to reduce the input resistance,(ohm):.......................141.038

 Input resistance for negative half-wave,(ohm):..............141.038

 Input resistance for positive half-wave,(ohm):..............112.83

 Driving power to the grid with additional resistor,(W):.....5.429

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  CATHODE PARAMETERS
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 Input resistance of the cathode,(ohm):......................65.913

 Running power through the tube,(W):.........................9.292

 Driving power to cathode (losses in the input circuit
 
are not counted),(W):.......................................10.378

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