Ge transistors at hand, what to go for ?

[Krinor]

Hi,

I just got a list of transistors for sale through a radio historic club where I am a member.
I just wondered if anyone here would take a look at the list and maybe could suggest which ones to go for. I have a lot of AC126's so I don't need more, but some of you may recognize some good or interesting ones here...?

AC125
AC126
AC128
AC188
AC132
AD149
AD161
AF124
AF239
BC148
BC177
BD146
BF115
BF194
BF195
BF200

[newfish]

Wow!  That's quite a list.

Have you searched for data sheets?

That might be your best place to start, then you'll have some idea of N / P and also hfe ratings (assuming the devices are still farily well behaved...).

[Johan]

they all seem to be European, so there is a nomenclature to folow..

first letter 
A:germanium
B:silicon

second letter
C:small signal
D: power
F: HF low level

hope this helps...

j

[Krinor]

Thanks Johan,

I really didn't know that. Very usefull!

[Johan]

I got it from here...( big link warning.2.5M ) https://www1.elfa.se/data1/wwwroot/webroot/Z_STATIC/en/pdf/fakta55.pdf  page 36
...from ELFA...everything you need to know about electronics.. 
j