I couldn’t find myself a Hayes Chronograph, so in this video I just went off and built one… Purpose I always wanted a Hayes Chronograph, but I seem to miss the opportunity to acquire one, every time the opportunity presents itself. So I decided that in 2020 I would just have one … or else. …
Read MoreAuthor: admin
Convergent Technologies CTOS/BTOS hints, tips, and notes
I’ve been playing with some old CTOS-based Convergent NGEN (Burroughs B25, B26, etc) workstations lately. Documentation on these is a little bit sparse, so I decided to keep a log of my notes. This blog post is going to concentrate on running the CTOS operating system on actual period-accurate hardware — not on a virtual …
Read MoreTandy 1000 Upgrades / PS2-Tandy Keyboard Adapter
In this video, I spiff up a Tandy 1000 that I bought on ebay: Purpose: A Tandy 1000 was the second computer that I owned, the first was a Tandy CoCo. Note that I keep a slightly different mental “computers that I owned” list and “computers that I used list”. There are a few computer …
Read MoreRestoring a Convergent Technologies NGEN PC/Workstation (Burroughs B25 / Unisys)
In this set of videos, I work on getting a used Convergent Technologies NGEN computer up and working: In the second video, I figure out the pinout for the 25-pin connector, and I get the keyboard working and the video displayed on an MCE2VGA. In the third video of the series, I design and build …
Read MoreRaspberry Pi Controlled DC Load
In this video, I build a DC electronic load that’s controlled by a raspberry pi. Purpose A DC Load is useful for testing lots of different things. If you have a power supply and want to make sure it’s able to deliver its fully designed potential, then you can use a DC Load to test …
Read MoreNew 3D Printing Channel and Website
Now that I’m doing more and more 3D printing projects, I decided to create a separate channel and website to host the 3D printing projects, and keep this website primarily focused on my electronics projects. The new youtube channel is smbaker-3d-prints. On this channel, I do the occasional filament review, print some models and try …
Read MoreHot Shoe to 1/4-20 Quick Release Magnetic Mount for LumeCube
Short diversion from the usual electronics posts, while I talk about my new camera light… I designed and 3D printed this magnetic quick release mount to attach a LumeCube v2 that I recently purchased to my DSLR camera. Purpose I noticed recently that my camera lighting is sometimes lousy, the Polaroid light that I had …
Read MoreBuilding a Power-over-Ethernet (PoE) Power supply using a DPS5005 module
In this video, I design an build a PoE-powered lab power supply. Purpose What can I say, I like building power supplies. 🙂 Seriously though, I’ve been looking for a reason to play with these DPS5005 and related modules ever since seeing them on popular forums and video blogs. The DPS5005 is relatively well regarded, …
Read More