Testing TCI Transistors

[randy]

For those of you who've ripped apart your TCI and want to test the transistors, here's a guide. Don't use a digital meter. Also, be sure your meter actually has the + voltage on the red lead. Not all of them do! Can confuse (flip) the results, but won't do any harm. Have fun.

[xs1100yam]

Hi Randy,

Useful and clear info !

Thanks

[randy]

Sorry about the quality. Every time I FTP from the office the files get chewed up. What's up with that?

[Shuriken]

Your work with these TCI's is unmatched anywhere. Thanks for the great service to all of us XSives.
Ben

[randy]

Wait 'till you see what I'm cooking up in the lab!
[*] 'Recto-stein' rectifier / regulator replacement
[*] 'Igno-stein' ignitor replacement

Film at 11

[John]

Can you smell what the 'Rag' is cookin'?

[xs1100yam]

I'm impatient to see that !

[LoserShoes]

You can use a digital meter if one of resitance ranges has a little diode symbol associated with it. Most of the better DVM's have them. On that range the voltage/current is adjusted to bias the junction properly.

Steve

[melbxs]

Randy

any chance you could repost the picture in post 1?

Please.

[DAVINCI]

Holy crap, that's an 8-yr old post. Something like four computers - ago. lol. I'll look tonight.

[natemoen]

Holy crap, that's an 8-yr old post. Something like four computers - ago. lol. I'll look tonight.

or 6 year old, but who is doing the math

[DAVINCI]

Here you go: