kjo

Rescuing vintage microcontrollers from their decades-long purgatory in a drawer.

PS: not my blog.

DIY rebuild project for the Tektronix PS503A dual tracking power supply.

The constructed power supply: https://www.paulvdiyblogs.net/2026/03/diy-ps503a-construction.html

PS: not my blog.

My goals for this firewall were mostly to provide better robot blocking and perhaps some more powerful DDoS protection than my Raspberry Pi 3 web server is capable of delivering. I still have to do some testing before I will know if my new firewall actually provides either of those, but at least I now have the additional ability to run multiple physical web servers on my LAN. Exploring that should be fun, and fun is a very important component of running a home web server.

Not my article. Just sharing.

Hello Ask Electronics community, please help me identify the name of this connector.

For context, this is from a motor scooter: Yamaha Mio M3 125. This socket connects the ECU to the wiring harness.

I wish to know how to open this socket to access the rubber/silicone seal inside, and to know that first I need to identify the name of this connector.

So anyone know what is the name of this connector?

Something like "Superseal 24-pin" or so. Also, to clarify: I am not searching for replacement part for this connector. I only need to know the name.

Here are some more pictures of the connector (hover above the picture to see alt-text).

(None of the pictures are mine, I just copied them from the internet).

Testing if Lemmy supports hashtags. #Monday #Test

My brand spanking new Casio F-105. It is only less than a day, but I like it so far. 😘

Last time I wore a digital watch was decades ago.

Here's the electro-luminescent backlight. Can you tell I'm not used to take photo in the dark? 😅

A shortwave radio receiver from scratch using only cheap and easily available components, i.e. standard transistors, op-amps and 74xx logic chips. No typical radio parts – no coils, no variable capacitors, no exotic diodes.

Not my post/video. Link to mastodon.social post which then links to YouTube video.

Poster bought an old firewall hardware:

1. saw unpopulated footprints on the circuit board,
2. analyzed the chips,
3. found the serial comm to access BIOS (blocked by password),
4. dumped the SPI flash memory,
5. obtained supervisor password,
6. accessed the BIOS from serial comm,
7. enabled the video display in BIOS,
8. soldered the HDMI port,
9. soldered the SATA power and data ports and the associated components,
10. connected a SATA SSD,
11. checked that the SSD is being recognized in BIOS,
12. made modifications to firewall circuit board to mechanically secure the SSD, and to face plate to facilitate the HDMI port,
13. installed FreeDOS and used it as a retro gaming PC.

Using Intel CPU JTAG to dump the secret bootrom in Microsoft's original Xbox. Disclaimer: not my blog.

Blog not mine. I'm just sharing.