Box of 50 П416Б Ge Transistor Tested

[rossbalch]

Bought a box of 50 П416Б Russian NOS Germanium Transistors from eBay. Spent the day in between working chucking them in the TC1 tester, so take the results with a grain of salt I guess. Apparently these are known for being low leakage, in fact the TC1 did not report an Iceo for most of them which I thinks means the leakage was below the detection limit. The hFE range was from 33.3 to 88.1. I guess I would say I am mildly disappointed with the batch, other people reported a tighter spread of 70-80 hFE. Probably not a great pickup for Fuzziacs but definitely plenty of useful fodder for pre-amp like circuits. The low leakage definitely will help find a home even for some lower gain transistors, maybe even some kind of cascading design preamp or something?

Edit: I should mention, with low leakage a good candidate for Darlington pairs probably.

Device	Process	Technology	hFE	Iceo μA
П416Б	Ge	PNP	33.3	ND
П416Б	Ge	PNP	38	ND
П416Б	Ge	PNP	40.2	ND
П416Б	Ge	PNP	40.8	ND
П416Б	Ge	PNP	41.5	ND
П416Б	Ge	PNP	42.5	ND
П416Б	Ge	PNP	42.9	ND
П416Б	Ge	PNP	43	ND
П416Б	Ge	PNP	43.6	ND
П416Б	Ge	PNP	43.7	1
П416Б	Ge	PNP	43.8	ND
П416Б	Ge	PNP	44.1	ND
П416Б	Ge	PNP	45.5	ND
П416Б	Ge	PNP	46	13
П416Б	Ge	PNP	46.4	ND
П416Б	Ge	PNP	47	ND
П416Б	Ge	PNP	47.5	ND
П416Б	Ge	PNP	47.6	ND
П416Б	Ge	PNP	47.8	ND
П416Б	Ge	PNP	48.4	ND
П416Б	Ge	PNP	49.3	ND
П416Б	Ge	PNP	49.3	ND
П416Б	Ge	PNP	50	ND
П416Б	Ge	PNP	50.1	ND
П416Б	Ge	PNP	53.6	ND
П416Б	Ge	PNP	54	ND
П416Б	Ge	PNP	54	ND
П416Б	Ge	PNP	55	ND
П416Б	Ge	PNP	55.3	ND
П416Б	Ge	PNP	55.8	ND
П416Б	Ge	PNP	56.3	ND
П416Б	Ge	PNP	57.6	ND
П416Б	Ge	PNP	57.6	ND
П416Б	Ge	PNP	57.9	ND
П416Б	Ge	PNP	61.2	ND
П416Б	Ge	PNP	64.5	ND
П416Б	Ge	PNP	66.2	ND
П416Б	Ge	PNP	66.7	ND
П416Б	Ge	PNP	67	ND
П416Б	Ge	PNP	67.5	ND
П416Б	Ge	PNP	67.7	ND
П416Б	Ge	PNP	68.5	ND
П416Б	Ge	PNP	69.7	2
П416Б	Ge	PNP	72.4	ND
П416Б	Ge	PNP	78.6	2
П416Б	Ge	PNP	78.8	ND
П416Б	Ge	PNP	79	ND
П416Б	Ge	PNP	81.9	ND
П416Б	Ge	PNP	83.4	ND
П416Б	Ge	PNP	88.1	ND
		Median	53.8
		Average	55.812