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Old September 28th 06, 10:50 AM posted to rec.radio.cb
Telstar Electronics Telstar Electronics is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 985
Default Thought this was puzzling...


Frank Gilliland wrote:
Well, you just proved your foolishness by:

(1) contradicting the engineers at Motorola and other transistor
manufacturers who use diode biasing in the test circuits for nearly
every bipolar RF power transistor ever made;

(2) proving that you have never actually measured the open-base
voltage of a bipolar RF power transistor (hint: it's less than logic
would dictate);

(3) failing to understand that a bipolar transistor is a CURRENT
amplifier, not a VOLTAGE amplifier;

(4) demonstrating that your internet education didn't include the
basics of semiconductors -- specifically that the Vf/If curve has a
slope greater than zero;

(5) ignoring the fact that those "parallel" diodes which you thought
were "puzzling" were actually in series and used as temperature
sensors for a seperate bias regulator circuit; and

(6) posting your technical ignorance and inexperience in a public
forum where it can be read by any potential buyer of your amp.

So what's next from you, Brain? Some vague, Skippy-esque excuse about
how it's "part of a bigger picture"? Will you pull an Eitner and deny
the facts based on a claim of omniscience? Or will you just go back to
your same old fallacious argument that anyone who has never built a
cheap CB amp doesn't know squat?

The circuit works. If it didn't work for you then either you screwed
it up or didn't understand its function. I'm guessing both.


Well... I have no plans to argue with you on this further. However, I
am surprised that you don't understand a concept so basic as the
inherent problem of paralleling two silicon diodes together. It's
interesting the rest of the electronics world has labeled that as
taboo. There's the "electronic world"... and then there's the
"electronic world according to Frank"... LOL

www.telstar-electronics.com