Loks like I nedd glasses: the right number is D318! :-)
Seems to work: that's an NPN Si transistor, hFE=100

Thaks for all,
Istvan

"Istvan Meder" wrote in message
...
Hi,

In an old tachometer I have found an old O318 transistor (?) . Could
somebody please help me to find out some data about that.

Thanks an best regards,