SS Power Amp

[C Moore]

I have just a basic understanding of guitar amps / tube electronics. I really have no experience with solid state stuff or transistors. The only thing I know about a transistor is Emitter, Collector, Base.
Can one of you guys tell me how to test a transistor with TWO Emitters? My son has a power amp for his CB radio. It has a few burned up resistors and I am wondering how to test the transistors. I have a soldering iron, 12VDC power source, and a DMM.
Thank You

http://pdf1.alldatasheet.com/datasheet- ... C2290.html

[tubeswell]

Don't know if this is any help (from about page 57 onwards) for troubleshooting transistor amps. (I don't understand much about 'silicooties' either.)

[Aurora]

There is only on emitter, but two connections to increase grounding surfaces, which is important in RF . th higher the frequency the better grounding needed. In essence it tests as any other transistor, but RF power circuits often or mostly have very low DC paths, so in-circuit testing is difficult - often impossibel even with specialised in-circuit testers.
Here's the data sheet
http://www.datasheetcatalog.org/datashe ... a/1468.pdf

[C Moore]

Thanks for the info.
So how do I test a Transistor when it is out of the circuit...?
If I de-solder these guys, is there a way to tell if they are bad/good...?
Thanks

[marcoloco961]

Thanks for the info.
So how do I test a Transistor when it is out of the circuit...?
If I de-solder these guys, is there a way to tell if they are bad/good...?
Thanks

On the data link sheet is a test circuit but it is a little in depth. Here is a link to a simple test circuit I use.

http://www.hobbyprojects.com/test_and_m ... stors.html