On 13 Oct 2010 14:48:19 GMT, frank wrote:

PeterD wrote:

Why (have distinguishing prefixes)?

SGC5282 NPN 60V 800mA 3W 250MHz
SGC5283 PNP 60V 600mA 3W 200MHz

Gee, that was easy!

many thanks, can I ask you where did you find these specs?

Frank IZ8DWF

Google is your friend, they were from something from (of all places)
Heathkit, IIRC. I just searched for the first one, got about 10 hits,
and only the last one (a PDF) looked interesting (most of the rest
were your query...)