On Sunday 17 November 2024 02:27:58 pm wn4isx via groups.io wrote:
I used RCA 2N2222's from the mid 1980s. I mention this because I suspect fabrication techniques have changed and this might effect the way a transistor goes into avalanche, I'm not sure it matters but all of mine have TO-18 metal cases, modern one all have TO-92.
The ones in plastic cases are not 2N2222, they're either PN2222 or P2N2222 as the wikipedia page mentions...
I use them when I need a bit more oomph, otherwise 2N3904/6 are preferred.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
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Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
