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Old 12th September 2005, 12:43 AM   #41
anatech is offline anatech  Canada
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Well, at first I was stunned in silence with mastertech's post. Then, after Duo's post (who I agree with here !!), wondering how old mastertech is.

The obvious technical contect of previous posts in this and other threads makes it difficult to believe mastertech is only trying to help given the tone of the offensive post ...
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what is darlington?
Quote:
you guys dont know huh
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darlington is the wiring of two or more trnsistors that increases the overall beta
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mr darlington came up with the idea first thus named after him
Please assume that most of us have passed some kind of electronics course until shown otherwise.

-Chris
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Old 12th September 2005, 12:47 AM   #42
Duo is offline Duo  Canada
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Hi there anatech, nice to see you.

Well, let me get two things off my chest:

First, really, I don't like to argue or fight all that much, I think mastertech and the rest of us probably just had some slight miscommunication here and there which can be worked out.

Second: I don't feel the significance of age in knowledge or experience that much. I understand that there is a connection; however, it's not a perfect connection...

Would you like to take a guess at my age?? I wonder if my answer might surprise you???
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Old 12th September 2005, 01:07 AM   #43
anatech is offline anatech  Canada
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Hi Duo,
I'd rather not have a fight either. The tone of the post that upset me wasn't well thought out and seemed a rather young or inexperienced thing to do. I do not have a lasting problem with anyone but had to make a point.

Yes, miscommunications do occur. I've had them. As for your age ... no clue and it does not matter. Maturity matters more.

Bettcha you don't know how old I am. Not that it matters either. If you are young, and well versed in the field, young age can be frustrating as few seem to take you seriously. That much I can say.

I believe that some experience is important before one assumes a certain tone. Not that it will excuse the writer completely. At least there is a body of knowledge the writer is working with. I am not inferring anything here (to avoid insulting anyone).

Anyway, back to the thread.

-Chris
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Old 12th September 2005, 01:09 AM   #44
Duo is offline Duo  Canada
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I must say, well said.

For the record, I'm eighteen, and believe me, it is a task delivering solid proof of my experience and work to some slightly stiff minded people.

But certainly, the tone is what caught me as well.

Thanks.

-back to the post.
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Old 15th September 2005, 07:26 PM   #45
ronybc is offline ronybc  India
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Heyyy... I'm 25... I've friends from far below and above my age.

Luckly.. I find TIP142 & TIP147 complementary darlington pairs in the local market. These devices should perform better than those MJE13005/2N3055/HOTs ..right?

Then contacted a friend of mine (who have a digital camera) to took this pic. Because... The labels on 'ST' make MJE13005s from MOROCCO are LASER carved. The TIPs are also 'ST' make from MOROCCO but the figures are printed instead. Are these fakes...? the pictures shown in Is this fake, it blows too much easy for a rudged TIP36 transistor makes more confusion. Do I need the Hammer test to reveal the truth...?
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File Type: jpg tip142-147.jpg (32.0 KB, 143 views)
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Old 17th September 2005, 03:00 AM   #46
CBS240 is offline CBS240  United States
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These look real to me. I am no expert on this but I have seen quite a few of these devices and they look like the ones you have here. I bought some TIP141/146 pairs from Mouser and I am not too happy about being gyped. The 146's are from Mospec and they are genuine. But the 141's are fakes. They are so fake that I knew they are fakes the moment I took them out of the pakage. I am not at home right now so I can't show a picture, but this was confirmed because 3 of them died under conditions where they most certainly shouldn't have. None of the 146's failed.
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Old 10th October 2005, 02:26 AM   #47
tade is offline tade  United States
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I have about 100 2N3055s that i got out of a water cooled array used to drive an argon laser. Can i do something cool with them?
I figure i could a power amp for a sub, of practice electronics with them.
Thanks for the help
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