Because it’s old is no guarantee it’s gone. I have numerous through hole semiconductors dating back to early ‘90s designs that are still available. Making the blanket statement that it can’t be produced because components must have EOL is meaningless. If that parts had significant usage, they very likely still exist. Even if not, small qtys, say <50 can be found from brokers.
73, Josh W6XU Sent from my iPad > On Nov 26, 2021, at 2:20 PM, Fred Jensen <k6dg...@gmail.com> wrote: > Yes indeed. I wonder what the availability and useful life of the 6L6 or 807 > types were? They were ubiquitous in 1953 when I began, and they continued > well into the 70's before power semiconductors came on the scene. Excluding > the NE555 which seems to have an infinite lifetime, if a semiconductor > component stays alive in the supply chain for 5 years, it's a long-hauler. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com