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Transistors

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JeremyP

JeremyP

Mechanical
Joined
Apr 11, 2009
Messages
2
Location
CA
I found a problem with one of the transistors on a small board I am working on. The transistor is so small I can't read the values on it. The board itself says that it is a TR 405. Does this mean anything to any of you guys?
 
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Yep... it means you've found transistor #405...

Dan - Owner
Footwell%20Animation%20Tiny.gif
 
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it is either a pnp a npn of a fet what are the supply voltages
 
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Get out the eye loupe or microscope if the markings are too small to read by unaided eye.

-AK2DM

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"It's the questions that drive us"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 
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Yeah I will have to get a microscope to read the markings. I can't make them out with a magnifying glass.
 
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What's the circuit board, perhaps someone has information on it.
Roy
 
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