Anyone want this?

lazzer408 · 13th September 2010, 02:47 AM

Not sure of the age or if it works.

lineup · 13th September 2010, 02:55 AM

What are the transistors called?

lazzer408 · 13th September 2010, 03:23 AM

Quote:

Originally Posted by lineup

What are the transistors called?

TO-3 case 68P1B (crosses to NTE 121) Germanium PNP

lineup · 13th September 2010, 09:39 AM

It is a 45V, 10A, 90W PNP Audio Output TO3 GERMANIUM transistor.
At least NTE121 and 68P1B is something like.
... See attached data ....
The hFE gain is good: 50-165, typ 90
VBE at 1A is only 0.38V ... which is a Germanium feature
fT, upper transistion frequency is low: 300 kHz
but this enough to make a good output follower stage

I am sure someone would like to try those.
Always nice to explore nice things. New challenges.
We have had several threads about old Germanium devices.

lazzer408 · 13th September 2010, 09:46 AM

Thanks for the info. This amp is free to anyone here who might like it. I don't have a use for it so it's better to go to someone here who might like it then find it's way into a landfill. Cover shipipng it's yours. Just thought I'd offer.

lazzer408 · 24th September 2010, 08:11 AM

I had a chance to test this amp. It does work. Doesn't sound half bad either. It originally powered 2 of the speakers in the picture. 12" woofer and a horn tweeter. I'd guess it's ~25w/ch or so.

Tekko · 24th September 2010, 08:39 AM

How much for shipping to sweden ?

lazzer408 · 24th September 2010, 08:41 AM

Quote:

Originally Posted by Tekko

How much for shipping to sweden ?

Probaby alot.

Tekko · 24th September 2010, 08:48 AM

25-30 USD ? Im willing to spend about that much for a free amp.

lazzer408 · 24th September 2010, 09:15 AM

Quote:

Originally Posted by Tekko

25-30 USD ? Im willing to spend about that much for a free amp.

I really don't have any idea. Last time I shipped something out of the states (dvd player) it was over $100 in shipping.

13th September 2010, 02:55 AM	#2
lineup diyAudio Member Join Date: Dec 2005 Location: the north	What are the transistors called? __________________ lineup

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13th September 2010, 09:46 AM	#5
lazzer408 diyAudio Member Join Date: Sep 2010 Location: Chicago	Thanks for the info. This amp is free to anyone here who might like it. I don't have a use for it so it's better to go to someone here who might like it then find it's way into a landfill. Cover shipipng it's yours. Just thought I'd offer.

24th September 2010, 08:11 AM	#6
lazzer408 diyAudio Member Join Date: Sep 2010 Location: Chicago	I had a chance to test this amp. It does work. Doesn't sound half bad either. It originally powered 2 of the speakers in the picture. 12" woofer and a horn tweeter. I'd guess it's ~25w/ch or so.

24th September 2010, 08:39 AM	#7
Tekko diyAudio Member Join Date: Jan 2005	How much for shipping to sweden ?

24th September 2010, 08:48 AM	#9
Tekko diyAudio Member Join Date: Jan 2005	25-30 USD ? Im willing to spend about that much for a free amp.