mitch88
Apprentice Shielder
Posts: 35
Likes: 1
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Post by mitch88 on Mar 16, 2024 21:45:21 GMT -5
I have two spare Ge transistors (plus some resistors) given to me by the bloke who modified the Dunlop FuzzFace JH-2 i bought 13yrs ago. The Ge's that were and are still in it are an NKT275 and a B175.[ibr] But the spare two Ge's i know nothing about. Could someone tell me what these spare Ge's are/where were these manufactured, and what the values mean? (see pcs when i can work out how to make them stick to this post) Q1 and Q2 obviously each Transistors' place, but I think 'L' = leakage. The pics didnt load in the order i added them. Thanks.
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Post by JohnH on Mar 17, 2024 4:05:19 GMT -5
I think you have one spare Ge transistor because a BC108 is a Silicon transistor.
It was my favourite transistor for my teenage projects in the 1970's because I had a bag of them. It was part of a series along with BC107 and BC109 (lower and higher gain respectively) and could usually be bought sorted into gain ranges A, B and C (increasing gain). The above is what I remember, those here into pedals will know more accurately.
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