20 Nov
2025
20 Nov
'25
12:44 p.m.
On 2025-11-20 7:37 a.m., Tom Hunter via cctalk wrote:
I received samples of the 2N5771 and have tested them.
They are perfect
replacements for the 2N3639 . Actually the 2N5771 has the better
performance.
I have also tested the PN4258 which too is a very good replacement for the
2N3639.
These transistors are available from various sources, but are obsolete (no
longer manufactured) so DIgikey, Mouser etc don't stock them.
Tom
Can we in get substitute parts list for all the dec transistor flip chip
cards. Ben.