How are you testing an LM323K out of circuit?
You're currently viewing posts by Pinsider G-P-E.
Click here to go back to viewing the entire thread.
Quoted from Pin_Guy:There are, and many are of them are of poor quality ... I actually have mixed feeling on this subject as while I would love to purchase parts manufactured to original specs from whomever holds the mfg. rights, the facts are that many of these parts are only available as counterfeits coming out of China. ..
LM323K's were originally crated by National Semiconductor. Several companies jumped on the bandwagon and created their own versions. But one by one, they were discontinued.
National Semi is now owned by Texas Instruments. And now the sole surviving company to make LM323K's is Texas Instruments.
From TI - the LM323K is still an active part, they are still made and can be readily purchased. Downside - they cost approx $50 each.
That is why parts such as the PSU5V (forgot actual part number) is popular. Same footprint, much lower heat and much lower cost.
When ST Microelectronics put out a last time buy - I bought several cases of LM323K's. Unfortunately, I should have bought far more. 20/20 hindsight is a wonderful thing... I also should have bought a metric shitload of 7404's when TI was dumping them at 5 cents each.
You're currently viewing posts by Pinsider G-P-E.
Click here to go back to viewing the entire thread.
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/fish-tales-blows-5-volt-regulator?tu=G-P-E and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.