Talk:Common base
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Could someone (preferably the author) pleas ex[plain this satment before it is deleted
.... VHF and UHF amplifiers where the fact that the output circuit only passes through a single PN junction rather than the two junctions of a common emitter amplifier gives a crucial advantage. It actually passes through two junctions according to the diagram.
Light current 22:50, 6 August 2005 (UTC)
Moved this here cos it is really is not correct and should not be on a live page
where the fact that the output circuit only passes through a single PN junction rather than the two junctions of a common emitter amplifier gives a crucial advantage. (which is...?)' Light current 23:42, 7 August 2005 (UTC)
Hello Light Current! I read your profile and enjoyed your humor. Why do you think that the output circuit passes through two junctions? The dependent current in the collector-base junction is relative to the base-emitter junction. When calculating the output impedance we do not cross the collector-base junction. Please reply.
Last comment by Geek22 (new user)
[edit] Parallel notation
Which looks better?
- Neither, in this case. I suggest delete lines and insert phrase 'in parallel with OR: insert 'and' between the two expressions and put words 'in parallel after. Light current 13:46, 8 August 2005 (UTC)
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- Disagree. :-) - Omegatron 02:58, August 9, 2005 (UTC)
- Knew you would:))Light current 03:03, 9 August 2005 (UTC)
- The question is, what will the innocent reader make of it? You and I know it is shorthand for 'in parallel with' but really do you think it should be used in pedia? Light current 03:10, 9 August 2005 (UTC)
- Knew you would:))Light current 03:03, 9 August 2005 (UTC)
- Disagree. :-) - Omegatron 02:58, August 9, 2005 (UTC)
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[edit] R_in
how does R1,R2 appear in the expression for R_in? they are shorted in small signal by C_b. 84.95.124.141 11:11, 20 February 2007 (UTC)
