I ran into a bunch of General Electric germanium 4jx1d610 transistors from the 60's and I know they're PNP via web searches but can't seem to hunt down a datasheet from the usual places for them. Anyone have any info on these at all? It would be wicked much appreciated, if so.
I have some to I if you ever found info on them.
Test them for gain and leakage.
Never did find any info on them. I did test them with the DCA, though. Gain ranges were from 50's up to 120 on the high side, with most being between 50-90, none of them being high leakage. I don't recall leakage stats offhand, but can tell you I was massively surprised that they all fell within FF guidelines easily, even getting up to the higher gain buckets.