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Transistor that has TWO emitters

Simmon

Jan 30, 2014
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This transistor has Two Emitters, look at the schematic

What is it called and what kind of circuits is it used for and why does it have 2 emitters?
 

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jpanhalt

Nov 12, 2013
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Simmon

Jan 30, 2014
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It seems they are used for RF modulation or modulation circuits for somereason but why 2 emitters?
 

shumifan50

Jan 16, 2014
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You are annoying. I also did not know BUT I read the links provided by jpanhalt and it is really simple to follow. So stop trolling and being lazy.
 

Simmon

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A multiple-emitter transistor is a specialized bipolar transistor mostly used at the inputs of TTL NAND logic gates. Input signals are applied to the emitters. Collector current stops flowing only if all emitters are driven by the logical high voltage, thus performing an AND logical operation using a single transistor. Multiple-emitter transistors replace diodes of DTL and allow reduction of switching time and power dissipation.
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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I have only ever seen these in IC schematics. I had no idea they ever made discrete versions.
 

Simmon

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But why the 2 emitters? what does having 2 emitters do? why not 2 bases? or 2 collectors?
 

jpanhalt

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@Simmon

I thought your comment in post #5 explained one reason.

A reason for multi-emitters in RF transistors was explained in the edaboard link.

John
 

Simmon

Jan 30, 2014
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i still don't understand why it has 2 emitters, can you please explain it better why it has 2 emitters, what does it do when having 2 emitters?

Does it output more current?
 

shumifan50

Jan 16, 2014
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Maybe you should give up on electronics as it requires some ability to think, which you seem to sadly lack.
Stop trolling
 

davenn

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i still don't understand why it has 2 emitters, can you please explain it better why it has 2 emitters, what does it do when having 2 emitters?

Does it output more current?

did you not read the links provided ?
was there something specific in any of those links you didn't understand ?

Dave
 

shumifan50

Jan 16, 2014
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@Davenn:
He either doesn't read provided links, cannot understand English or lacks the ability, as is clear from all his other threads.
Or he is just a troll out to annoy contributors, which is the most likely case. Each response is followed by another question until he is ignored.
 

jpanhalt

Nov 12, 2013
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Hi Simmon,

Before addressing your current question, let me say that I have known you as Billy Mayo (ETO),Danny Davis (EDA Board), DexterMccoy (AAC), and Simmon (EP). You have been banned from at least two of those accounts for trolling. You are fooling no one.

Moving forward, let's establish a basis of openness and honesty for future dialog. There are a lot of people here who would like to help you. But, since that help is offered as good will, I think you need to be honest in return.

Now, for your present question. Is it related to your attempted repair of autopilots for airplanes? I have no problem helping you with that, if that is the case, since the design is antiquated. However, that fact might make a difference to some others who would normally want to help you, as was discussed on ETO.

Second, what is your real question? Why is the answer important to you? What difference will the answer make in what you do tomorrow, next week, or next month at work?

Finally, you stated quite clearly how two emitters can be used to create an AND gate in your previous post (#5). I asked before what you do not understand of your own words, and you ignored my question. So, I ask it again. Let's have dialog rather than a one-way street.

John
 

davenn

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Before addressing your current question, let me say that I have known you as Billy Mayo (ETO),Danny Davis (EDA Board), DexterMccoy (AAC), and Simmon (EP). You have been banned from at least two of those accounts for trolling. You are fooling no one.

Ohhh noooo NOT Danny Davis
that's a nick I'm aware of
he was banned here quite some time ago but using a very different IP



Dave
 
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(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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No, I suspect he's using wifi wherever he can.

I have tracked down the IP addresses used by Danny Davis and Simmon and I have convinced myself they are likely the same person. The posting styles are likewise similar.
 

jpanhalt

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As are the schematics similar. Now, something called "pitch" and "pitch deviation" could refer to a pipe organ or maybe some other things, but none of those things have ailerons. The schematics offered over the past 3 or 4 months are telltale.

John
 

shumifan50

Jan 16, 2014
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I suggest that he be banned. The likes of him are extremely annoying. Then stick a banned cookie for this domain on his machine and disallow re-registration if this cookie is present. This is not foolproof, but might help.

I like to read all the posts as I learn a lot from them, even about things I don't need, but trolling wastes a lot of time.
 
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