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Best answer by Tesla DeLorean

Do you have a photo of your part?

I think this is a 2N6059 in a TO-3 package

https://octopart.com/search?q=2N6059&currency=USD&specs=0

I think 2NG059 isn't a valid reading of the marking, just not enough hits, or documentation

3 replies

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
May 18, 2021

Do you have a photo of your part?

I think this is a 2N6059 in a TO-3 package

https://octopart.com/search?q=2N6059&currency=USD&specs=0

I think 2NG059 isn't a valid reading of the marking, just not enough hits, or documentation

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PKlin.1
PKlin.1Author
Associate
May 18, 2021

It is in deed a 2N6059. I am very grateful for your help

Ozone
Principal
May 18, 2021

Except for being a Darlington transistor (higher current gain), there is nothing special about this BJT transistor.

You might consider similar transistors as replacement.

Newark seems to have the 2N6059 in stock :

https://www.newark.com/multicomp-pro/2n6059/transistor-npn-100v-12a-to-3/dp/35C0736