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#51
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![]() 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 |
#52
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On 28 Sep 2006 02:50:18 -0700, "Telstar Electronics"
wrote in om: 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. That's because you don't understand half of what I said. 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. It's not "taboo" in any book. It's only a problem if your intention is for them to share the current equally, in which case all you need is some form of current equalization. If they are -not- intended to share the current equally (as in the circuit I described earlier) then it is not a problem at all but a benefit. This happens often in electronics, when a component, with undesireable characteristics when used in one circuit, can be used to advantage in another. In fact, that's how the zener diode was "invented". Did you miss that class, too? There's the "electronic world"... and then there's the "electronic world according to Frank"... LOL Make all the excuses you want, Brian -- it doesn't change the fact that you are an internet-educated hack. |
#53
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Frank Gilliland wrote:
It's not "taboo" in any book. It's only a problem if your intention is for them to share the current equally, in which case all you need is some form of current equalization. If they are -not- intended to share the current equally (as in the circuit I described earlier) then it is not a problem at all but a benefit. This happens often in electronics, when a component, with undesireable characteristics when used in one circuit, can be used to advantage in another. In fact, that's how the zener diode was "invented". Did you miss that class, too? Make all the excuses you want, Brian -- it doesn't change the fact that you are an internet-educated hack. Easy Frank... it's only a newsgroup. www.telstar-electronics.com |
#54
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On 28 Sep 2006 08:34:36 -0700, "Telstar Electronics"
wrote in .com: snip Easy Frank... it's only a newsgroup. www.telstar-electronics.com It's ironic how you patronize to avoid the facts while still laboring under the delusion that your advertising gimmick is working to your benefit. Have you ever thought about going into politics? |
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