Proton BASIC Community

From where is this available? In the metal TO-3 package?

I see Alibaba have some for $0.10, but probably NOT genuine National Semiconductor parts

https://www.alibaba.com/product-detail/LM12CLK-NOPB-Original-Power-Amplifier-1_10000011824373.html?spm=a2700.7724857.0.0.fa735000FMls7B

John

here's "The real Copy McCoy"

when chinese supplier mention the term 'Original' it's mean mostly a copy from the original design from their chip manufacturing,
and 99% not an original or surplus part directly from the National Semiconductor.

https://www.alibaba.com/product-detail/LM12CLK-Package-TO-3-LM12-Operational_1601388572345.html

https://www.aliexpress.com/item/1005007322966262.html?spm=a2g0o.productlist.main.7.1b12YL03YL03eb&algo_pvid=3c144de1-ce3f-4f3f-9acd-1b8d66bef6a5&algo_exp_id=3c144de1-ce3f-4f3f-9acd-1b8d66bef6a5-6&pdp_ext_f=%7B%22order%22%3A%226%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21CAD%2121.47%2118.68%21%21%2114.95%2113.01%21%402101d25f17605249462947975ea611%2112000040260567642%21sea%21CA%210%21ABX%211%210%21n_tag%3A-29910%3Bd%3A4704c5c2%3Bm03_new_user%3A-29895&curPageLogUid=oCnO3IuaD2vE&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005007322966262%7C_p_origin_prod%3A

I really miss National Semiconductor. I cut my designer teeth reading their data and application handbooks - and using their devices of course.

John

https://youtube.com/shorts/3KET-SIoBBY?si=GeLXfbD6Zo4UZvnI
Finding the original LM12... I mean Turkey.

https://youtube.com/shorts/yu4-S1ijMxI?si=rVUSy_iLBGKrNCds
Waffely wedded wife...

https://youtube.com/shorts/gi7hvOjlCIQ?si=Fd9XMBduCUdMn_-C
Old jokes were something else

@ Jack - When you get these ridiculously long addresses, the address actually ends just before the question mark.
https://www.aliexpress.com/item/1005007322966262.html