D
Dbowey
- Jan 1, 1970
- 0
John posted:
<< On Sun, 29 Aug 2004 19:34:57 +0100, Paul Burridge
What makes an amp Class C is a low conduction angle while operating.
When it's not operating, is has no class at all.
I can't recall any reference to support your last paragraph, but I have many
experiences to refute it.
Many, if not most, Class C amplifiers remain "on" while not transmitting; That
is, their Class C bias holds the control grid sufficiently negative to hold the
tube in cutoff when there is no excitation. When excitation is resumed, the
tube conducts. Obviously it is in Class C at all times.
Don
<< On Sun, 29 Aug 2004 19:34:57 +0100, Paul Burridge
Toobz? I was talking of transistors. Many tranny designs for Class C
RF utilize self-bias, too, but there is still no quiescent current!
What makes an amp Class C is a low conduction angle while operating.
When it's not operating, is has no class at all.
I can't recall any reference to support your last paragraph, but I have many
experiences to refute it.
Many, if not most, Class C amplifiers remain "on" while not transmitting; That
is, their Class C bias holds the control grid sufficiently negative to hold the
tube in cutoff when there is no excitation. When excitation is resumed, the
tube conducts. Obviously it is in Class C at all times.
Don