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Last week-end I did work on a PCB layout. My first one in many years, and my first one using kicad, as well as my first 4-layer board.

Saperlipopette, j'ai encore craqué... Je dois me lever aux aurores demain pour aller réceptionner ça

Par contre le gros fail c'est que le HBX a été caviardé de ses règles ! Une belle DRO avec rien a afficher, c'est bien triste.

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In the process of replacing the control circuit of my olg MIG welder

Cheap stuff can be dangerous: I noticed this IEC power cable (no idea where it comes from) which is "rated" for 250V/10A... became warm with 2 amps... So I checked and it has a wire resistance of almost 1.5ohm! At 10 amps, it will dissipate almost 300W!

Not the best holding fixture, but I managed to cut this stupid non standard (4.7ish mm pitch) synchronous pulley from the SPZ ones so I can reuse these later to drive my small lathe-in-the-cellar coupled with a regular 5mm pitch one.

Good lord! Voilà qui devrait m'occuper quelques années ! Faut déjà réussir à transporter tout ça. Après, trier, ranger, nettoyer, remettre en état... Et apprendre à maîtriser la bête ! Un peu plus complexe que mon brave Socomo Star 300.

Just received a small CH341 UART/SPI/I2C break board. Seems to work (driving a MAX7219 SPI 7 segments driver at least). Should be handy and easier to use than writing a custom nucleo or arduino firmware each time I want to play with a serial interface on a board.

BTW, while I was repairing my HP8672A, a few days/weeks ago, I realized this device has no CPU at all! Everything control logic is implemented with TTL logic... even the GPIB port! (it requires 3 PCBs full of DIP14/16 TTL chips to implement the GPIB communication protocol, however).

This is deliciously insane 🙂

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