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bit_slice
A. Renee

Registered: 12/12/05
Posts: 187
Loc: america, fuck yeah
Last seen: 17 years, 1 month
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Re: I must be bored... [Re: trendal]
#5214875 - 01/23/06 05:59 PM (18 years, 3 months ago) |
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Quote:
From the schematic it looks (to me) like the transistors would both receive a steady voltage through R1 and the feedback coil - so they would both turn on and stay on at about the same level. That wouldn't provide any oscillation at all, would it?
What prompts you to think that the transistors would turn on and stay on?
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trendal
J♠


Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
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Re: I must be bored... [Re: bit_slice]
#5214895 - 01/23/06 06:05 PM (18 years, 3 months ago) |
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After applying voltage, the base voltage of both transistors should rise to and stay at a steady DC voltage (determined by R1).
Diploid's answer makes sense, though: there is a steady DC bias on the base of both transistors, but due to the inductive coupling of the primary and feedback coils, a varying voltage is induced in the feedback coil. As the bases are connected to either side of the feedback coil, they receive an additional (opposing) voltage on top of the bias.
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Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
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bit_slice
A. Renee

Registered: 12/12/05
Posts: 187
Loc: america, fuck yeah
Last seen: 17 years, 1 month
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Re: I must be bored... [Re: trendal]
#5214961 - 01/23/06 06:30 PM (18 years, 3 months ago) |
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Quote:
trendal said: No I'm completely self-taught, but as I said I already know exactly how transistors work, down to the quantum theory side 
If you are self-taught, you should take a class or 2. It would reinforce your practical knowledge while deepening your understanding of the theory.
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trendal
J♠


Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
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Re: I must be bored... [Re: bit_slice]
#5214979 - 01/23/06 06:35 PM (18 years, 3 months ago) |
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No, I'm self-taught for a reason 
School in north america serves one purpose - to give you a fancy-looking peice of paper with your name on it. If I want to prepare myself for a career, I'll go to school. Aside from that, there's no point in wasting my money on something that will be 90% wasted time.
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Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
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RandalFlagg
Stranger
Registered: 06/15/02
Posts: 15,608
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Re: I must be bored... [Re: trendal]
#5215007 - 01/23/06 06:40 PM (18 years, 3 months ago) |
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I think what you are experiencing is called "inductive current lag". In an inductive circuit, current waveforms will lag voltage waveforms by 90 degrees.
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bit_slice
A. Renee

Registered: 12/12/05
Posts: 187
Loc: america, fuck yeah
Last seen: 17 years, 1 month
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Re: I must be bored... [Re: trendal]
#5215058 - 01/23/06 06:51 PM (18 years, 3 months ago) |
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too cool for school, huh? my A.S. piece of paper is hanging proudly on my fridge.
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trendal
J♠


Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
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Re: I must be bored... [Re: bit_slice]
#5215065 - 01/23/06 06:53 PM (18 years, 3 months ago) |
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Heh yeah, 20 years in all levels of schooling has left me rather apathetic towards it
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Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
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RandalFlagg
Stranger
Registered: 06/15/02
Posts: 15,608
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Re: I must be bored... [Re: trendal]
#5215080 - 01/23/06 06:56 PM (18 years, 3 months ago) |
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Quote:
trendal said: Heh yeah, 20 years in all levels of schooling has left me rather apathetic towards it
I don't know why you're all into this crap. I was an Electrical Engineering Technology major at a major university. It was easy as hell but also boring as fucking hell. Ever since I left I have not even thought once about circuitry.
Ack! You're making me think about circuitry now! Damn you!
Edited by RandalFlagg (01/23/06 06:57 PM)
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trendal
J♠


Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada
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I'm sure if I went to school for it, I'd find it boring as hell too 
I used to really like computers. Then I went to university for computer science. Now I just use computers.
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Once, men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them.
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bit_slice
A. Renee

Registered: 12/12/05
Posts: 187
Loc: america, fuck yeah
Last seen: 17 years, 1 month
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I don't know why i go to school for it either. i got nothin better going on.
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TheCow
Stranger

Registered: 10/28/02
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Re: I must be bored... [Re: bit_slice]
#5216184 - 01/23/06 11:32 PM (18 years, 3 months ago) |
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I know why I go to school, its literally impossible to learn what I am learning on my own. I do research with professors on cutting edge processor technology, this would be impossible to do on my own.
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