[sdiy] Simple 'plug and play' transistor tester

[Travis Shire]

> Hey all,
>
> Can anyone suggest or recommend a simple/decent, (NPN 2N3904) transistor 
> tester schematic or tool?
>
> Ideally I'd like something where I can just stick the transistor into a 
> socket and be done...
>
> ...seems like there's a whole bunch of them out there.
>
> Many thanks,
>
> Justin
>


I like the B&K 520b. You can regularly pick them up for around 50$ on Ebay. 
They don't display gain, but they *do* check for leakage....and that's 
important if you're doing any repair. A transistor can check good but still 
not perform in the circuit due to leakage.

http://shop.ebay.com/?_from=R40&_trksid=p3907.m38.l1313&_nkw=B%26K+520b&_sacat=See-All-Categories