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What are these parts
What are these parts
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Old 21st January 2003, 07:38 PM   #1
billybeer is offline billybeer
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Lightbulb What are these parts

I got a pair of custom amp that my uncle built. I am trying to figure out what the outputs are but have not been able to figure it out what they are. They are TO-3 case. They have printing and p/n that look like this.
4 4
571134 561049
7917 7917

there are four of each per channel. Does anyone know what they are and what can be used as replacement? I have tried to crossreference them but can find nothing.

any help appreciated,


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Old 21st January 2003, 10:33 PM   #2
Netlist is offline Netlist  Belgium
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Default TO3

571134 = 2SK134
561049 = 2SJ49
Both are Mosfets

7917 is date of manufacturing: Week 17 year 1979
the 4 = ?
Anyone: correct me if i'm wrong..

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