Author Archives: gary

Hard Disk Fun

Having some fun with old hard disks…. by taking them apart of course Pics here. There’s some interesting parts inside. Some fantastically strong magnets and an air core coil are used to position the heads. Stepper motors are long gone from hard drives! Might try some wireless charging experiments with the coil. The platters themselves […]

August Open Social

It’s Open Social time again…. this coming Saturday 15th Aug. At the last Open Social in July, we were just a week away from Dublin Maker. The place was hectic with activity. This Open Social will see Toggers much more relaxed. Drop in and hang out for the evening. If you’ve never been to the […]

Playing with the IMAX charger

Got an IMAX B6 mini charger to play with. Pics here. This charger will charge and discharge lots of different battery chemistries. We recently acquired some 6-volt lead acid sealed lead acid batteries….believed to be from a UPS. Two of them powered our buzzer game during the recent Dublin Maker. We’re using the discharge function […]

Vintage Electronics 2

Following the build of our 1978 Metal Detector, next up in our Vintage Electronics series will be a Digital Bicycle Speedometer.  In the March 1977 issue of Popular Electronics, they published an article for a digital speedometer complete with red LED displays. This will be a build from the original magazine which we have in […]

July Open Social

It’s the middle of the month, it’s Saturday and its 7PM. That can only mean one thing. It’s TOG Open Social again. This Open Social will see us just one week away from Dublin Maker. You’ll get to see a sneak preview of some of the things that we’ll be bringing to our stand. Apart […]

It’s Alive!

More progress with our vintage metal detector today. Fired up the oscillator section of the PCB and its working away at 126kHz…. very close to design frequency.   We’re going to continue to work on it, with the intention of having it ready for Dublin Maker in less than 2 weeks time. Pics of the […]