Transistor grade color codes

3 posts in this topic

Hello, Crown graded output transistors have been graded with a color splash for a while now, can anyone tell me how the colors relate to the old numerical system?

For example I have C8187-4 here, I have C8188-2, MJ21194 etc; some have color splashes and some have ink-stamped numbers and I need to sort them out.



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