OT(?) germanium transistors

[Haible Juergen]

	>> AC125
	>> AC126
	>> AC127
	>> AC128
	>> AC187
	>> AC188
	>> AD161
	>> ASZ15 Ptot=30W Ic=8A Vceo=60V Hfe=20/55 Ft=0,2MHz
	>> 2N441Ptot=150W Ic=12A Vceo=40V Hfe=20/40 Ft=0,01MHz
	>> wow! are any of these power transistors? I'll have to get
t.i.t.s.
	>out....... (towers international transistor selector, an invaluable
volume
	>for the repair shop)
	>
	>Yes, the last two (see spec above). Unfortunately, they are both
PNP.
	>
	>/Jorgen

They probably are reilics from a time when a typical audio power amplifier
had two
audio transformers: one to drive the two pnp transistors with phase inverted
signals,
and one to drive the speaker much as you would have done with tubes.

BTW, I have not double checked, but some of the listed AC devices look like
(small) power transistors, too. 

www.reichelt.de had a range of Ge transistors as well, last time I checked.

JH.