| Ended up with some extra 74F133N ICs for the KISS-68030 [message #8247] |
Tue, 26 January 2021 04:55  |
ddevault
Messages: 3
Registered: November 2020
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Hi, first post, insert introduction here
I'm building the KISS-68030, and one of the most difficult chips for me to find was this one. I finally got it, but I only needed one and ended up with 25. If anyone is looking for this chip, I can definitely hook you up. Also, does anyone have some tips for powering the ECB Backplane-8? I'm having a hard time finding the socket.
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| Re: Ended up with some extra 74F133N ICs for the KISS-68030 [message #8266 is a reply to message #8257] |
Sun, 31 January 2021 04:59  |
ddevault
Messages: 3
Registered: November 2020
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Junior Member |
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b1ackmai1er wrote on Fri, 29 January 2021 02:44Ebay search "molex power pcb mount"
Aha, thanks! It just takes 12V DC, right?
quarterturn wrote on Tue, 26 January 2021 08:42Discrete logic keeps getting harder to find. Each time I visit Digikey and Mouser the selection dwindles. There's probably decent money sitting in our parts boxes. I was gathering parts to build a Mr. Carlson's Lab capacitor leakage tester trying to find an LM3915 - these are now difficult to find and expensive. Turns out I have ten of them, along with ten LM3916!
I wonder if it would be helpful to have some kind of common chip inventory, like the board inventory but for more discrete parts. Could be helpful just to keep track of what I have in my own box!
[Updated on: Sun, 31 January 2021 05:01] Report message to a moderator |
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| Re: Ended up with some extra 74F133N ICs for the KISS-68030 [message #8278 is a reply to message #8251] |
Mon, 01 February 2021 11:23 |
beb
Messages: 10
Registered: October 2019
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Junior Member |
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quarterturn wrote on Tue, 26 January 2021 08:42
Discrete logic keeps getting harder to find. Each time I visit Digikey and Mouser the selection dwindles. There's probably decent money sitting in our parts boxes. I was gathering parts to build a Mr. Carlson's Lab capacitor leakage tester trying to find an LM3915 - these are now difficult to find and expensive. Turns out I have ten of them, along with ten LM3916!
I don't fully agree with that. It's true that some families are dying (or already died), like the 74F or the 74S, but there are still many discrete logic chips available. Moreover, new families (like LVC for example) did appear to make 5V and 3.3V coexist.
The main issue for DIYers is that DIL versions are little by little disappearing, as the industry switched to SMD a long time ago and only a very few designs with sufficient volume still use the through-hole style.
For most of the designs I am working on (including the RBC ones), I have decided to switch to SO packages as they are very easy to find and not so hard to solder once you practice a little (and you have a decent soldering iron with a thin tip)
Benoit
[Updated on: Mon, 01 February 2021 11:23] Report message to a moderator |
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also sells the DIN 41612 connectors too.
