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How to check this transister sta ...

:: EPE Chat Zone ≠:: ≠Radio Bygones Message Board :: » EPE Forum Archives 2005-2006 » Archive through 22 February, 2006 » How to check this transister sta 353 pnp « Previous Next »

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Newone
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Username: Newone

Post Number: 33
Registered: 12-2005

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Posted on Saturday, 18 February, 2006 - 06:02 pm:   Edit Post Delete Post Print Post

how to check pnp transister whith analog meter
its pnp transistor

i use analog meter
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Newone
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Username: Newone

Post Number: 34
Registered: 12-2005

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Posted on Saturday, 18 February, 2006 - 06:04 pm:   Edit Post Delete Post Print Post

how to check it whith analog meter

its broken or lekage

i put the meter in x10
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Vk3kbr
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Username: Vk3kbr

Post Number: 54
Registered: 08-2005

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Posted on Sunday, 19 February, 2006 - 12:55 am:   Edit Post Delete Post Print Post

G'day newone,
use the analogue meter on ohms X 1 to check the junctions of, Base to Emitter, Base to collector. Then use Ohms x 100 (or X 1000) to check for leakage between all elements.
NOTE : The base to emitter and base to collector will still read if you do not reverse the meter leads for the leakage tests.
Rod vk3kbr
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Newone
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Post Number: 35
Registered: 12-2005

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Posted on Sunday, 19 February, 2006 - 02:34 pm:   Edit Post Delete Post Print Post

thanks for reply please more explanation
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Gordon
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Username: Gordon

Post Number: 41
Registered: 05-2005

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Posted on Sunday, 19 February, 2006 - 02:56 pm:   Edit Post Delete Post Print Post

Hi, This link has info. on testing bipolar transistors of various types, and most other semiconductors using analogue or digital multimeters.

http://repairfaq.ece.drexel.edu/sam/semitest.htm#stttm

The tests only give a basic indication that the semiconductor under test is probably okay.
If you have a PNP transistor that you know is working, you can also use that as an indication of what readings to expect.
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Paul_goodson
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Username: Paul_goodson

Post Number: 291
Registered: 05-2005


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Posted on Sunday, 19 February, 2006 - 10:18 pm:   Edit Post Delete Post Print Post

Hi Newone
Are we talking AGAIN of haw to test it, in a circuit or out of a circuit?
It could make a BIG difference

And have another look at some of your old threads on the same topic


Paul
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Obiwan
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Username: Obiwan

Post Number: 153
Registered: 12-2005

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Posted on Sunday, 19 February, 2006 - 10:20 pm:   Edit Post Delete Post Print Post

Still working on that Sat receiver eh?
May the Force be with (most of) you.....
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Newone
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Username: Newone

Post Number: 36
Registered: 12-2005

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Posted on Monday, 20 February, 2006 - 12:22 am:   Edit Post Delete Post Print Post

thanks to Vk3kbr

please tell me more about analog meter to check it

please full detail. i want to check it in circuit
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Obiwan
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Username: Obiwan

Post Number: 155
Registered: 12-2005

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Posted on Monday, 20 February, 2006 - 01:33 am:   Edit Post Delete Post Print Post

Checking the same type of transistor will be the same. Meaning you test the 2N2222 the same way you test the 2N3905.


Different TYPES test different ways, well, they test the same WAY really, just different specs and results. The method is exactly the same.

What I'm saying is, if you know how to test one transistor, you know how to test them all, if you know the specs of it. And people have given you information on where to get those specs.

So you really have been told everything you need to know.

I'm only suggesting that you pay attention to what is being said and learn it, that way you don't have to keep coming back to ask how to test a specific transistor, you'll already know how.
May the Force be with (most of) you.....
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Violin_m
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Username: Violin_m

Post Number: 35
Registered: 05-2005

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Posted on Monday, 20 February, 2006 - 11:58 am:   Edit Post Delete Post Print Post

Hi. Iíve already mentioned to Newone in a previous thread that you cannot properly check the functionality of a particular transistor while in circuit (only the stage) because of the mixed readings by the surrounding components, unless 2 of the 3 legs are desoldered (removed) first. Regards. Violin
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Newone
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Username: Newone

Post Number: 37
Registered: 12-2005

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Posted on Monday, 20 February, 2006 - 03:00 pm:   Edit Post Delete Post Print Post

thanks to all.


i will take out the transistor from the circuit. so please tell me how to checkn it if its broken or lekage

i use analog meter

i will put in


x1

x10
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Violin_m
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Username: Violin_m

Post Number: 36
Registered: 05-2005

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Posted on Monday, 20 February, 2006 - 03:36 pm:   Edit Post Delete Post Print Post

Hi Newone. I know a wide description in how you can check a transistor with a multimeter, digital and analogue has been passed to you, either directly or via links, in your pervious threads, by many members here. So can you please come back and let us know in you specifically are unsure off. Regards. Violin.
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Paul_goodson
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Username: Paul_goodson

Post Number: 292
Registered: 05-2005


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Posted on Monday, 20 February, 2006 - 05:33 pm:   Edit Post Delete Post Print Post

RE one of your old links
http://www.chatzones.co.uk/discus/messages/1218/1982.html?1136818351

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