New program OPANGLE3



NOW AVAILABLE ** New Program "OPANGLE3.exe"

Choose and set plate current operating angle for Class-B and Class-C
RF power amplifiers.

Input data includes control-grid plate-current cut-off volts, DC
negative grid bias, and peak grid drive volts.

Advice on how to use Tube Operating Characteristic Curves is included.
For interest the plate current harmonic content is computed up to the
21st harmonic.

For given DC plate supply volts and peak plate signal volts, the DC
power input, tuned load resistance, RF power output, plate dissipation
and efficiency are computed.

This is a repeat of program Op_Angle (now withdrawn) with the addition
of an analysis of conditions in the plate circuit.

Program size = 50 kilo-bytes.
Download OPANGLE3 from website below.
----
............................................................
Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
............................................................


.



Relevant Pages

  • Re: More on PEP, AM, average power, etc.
    ... > Since my earlier post (dealing with the question of what is peak evelope ... 1 kV on the plate gives 175 ma plate current ... > linear relationship between plate current and plate voltage (meaning zero ... > 400 watts of peak power and represent that as having something to do with ...
    (rec.radio.amateur.boatanchors)
  • Re: 6SN7 amp trouble?
    ... volts on your voltmeter, starting at the first ... plate and working in to second grid, ... Or just get a scope... ... Might be a little more careful and get trannys that are guitar amp ...
    (alt.guitar.amps)
  • Re: 6SN7 amp trouble?
    ... volts on your voltmeter, starting at the first ... plate and working in to second grid, ... Or just get a scope... ...
    (alt.guitar.amps)
  • Testing Tubes
    ... have been varying the control grid voltage from -2 volts to -3 volts while ... to the curves for pate current vs. control grid volts I should be getting 10 ... volts plate voltage with -2.5 volts at control grid. ...
    (rec.audio.tubes)
  • Re: More on PEP, AM, average power, etc.
    ... > saturation, the more linear does the plate modulation become. ... The plate current operating angle is small. ... Ideally it should be zero volts. ...
    (rec.radio.amateur.boatanchors)