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Old 15th Oct 2021, 10:55 pm   #6
Terry_VK5TM
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Join Date: Oct 2010
Location: Tintinara, South Australia, Australia
Posts: 2,324
Default Re: 2N 3055-2 ( yes -2 )

If the transistor is a Motorola branded one, an explanation I have seen is that it is the HFE grouping.

And the reason for the grouping was to have similar/matched HFE when used in parallel such as in power supplies.

How accurate that is, I don't know, but the only explanation I have seen for the -2

Some data https://alltransistors.com/transisto...ransistor=2779
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Last edited by Terry_VK5TM; 15th Oct 2021 at 10:56 pm. Reason: data info url
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