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

Someone in the Cape caught this beautiful Puff Adder.

What makes them especially dangerous is that they bite first and reconsider later.  They have large venom sacs, large fangs, and strike very hard to drive the fangs deep.  Most likely the fastest striking snake because you don't see it bite.  They camouflage very well in the veld and is often the reason someone step on or near enough to get a surprise.  They do hiss if they become aware of you as a warning.

Apparently Puff Adders are more dangerous when they are small, because they have not yet developed the ability to control the amount of venom they inject, while a large one like this can.  Big or small, you don't want to get bitten by one.  The amount of venom is always too much.  Never hold them behind the head, they have the habit to suddenly rip their head out of your grip and strike before you realize what happened.