Uploaded March 2016 | Updated September 2026, 2 weeks ago
The TDK HD-11 Tapehead-Demagnetizer is taken apart and reverse-engineered.
Roger explains how to reverse-engineer an unknown circuit and how the demagnetizer works.
Some experiments with the DS1054-Z DSO are made to demonstrate the circuit.
Demagnetizing-Theory: youtu.be/T4q5irgKEew
Download of schematics and photos of the TDK HD-11: kainkalabs.com/upload/?f=156ccc4556a209
Forum: forum.kainkalabs.com/forumdisplay.php?fid=3
Shop: ak-modul-bus.de
twitter: twitter.com/kainkalabs
facebook: facebook.com/kainkalabs
The TDK HD-11 Tapehead-Demagnetizer is taken apart and reverse-engineered.
Roger explains how to reverse-engineer an unknown circuit and how the demagnetizer works.
Some experiments with the DS1054-Z DSO are made to demonstrate the circuit.
Demagnetizing-Theory: youtu.be/T4q5irgKEew
Download of schematics and photos of the TDK HD-11: kainkalabs.com/upload/?f=156ccc4556a209
Forum: forum.kainkalabs.com/forumdisplay.php?fid=3
Shop: ak-modul-bus.de
twitter: twitter.com/kainkalabs
facebook: facebook.com/kainkalabs
![Suppressing unwanted oscillations with a Snubber [Pt.2]](https://i.ytimg.com/vi/qB32IUeY_B8/mqdefault.jpg "Suppressing unwanted oscillations with a Snubber [Pt.2]
Can we get away with the unwanted oscillation when switching off an inductor by using a snubber?
Yes, but we still have the back-EMF :-(((
Link to the 1. part of this video:
Wikipedia entries:
https://en.wikipedia.org/wiki/Snubber
https://en.wikipedia.org/wiki/Boucherot_cell
https://en.wikipedia.org/wiki/Zobel_network#Zobel_networks_and_loudspeaker_drivers")
![Every maker should have…[Pt.17]…a Nixie-Watch and a Solder:Time-Watch](https://i.ytimg.com/vi/r8vKN3jk_80/mqdefault.jpg "Every maker should have…[Pt.17]…a Nixie-Watch and a Solder:Time-Watch
Roger shows his Nixie-Watch from David Forbes/Cathodecorner and his Solder:Time Watch as well as 2 cheap Binary Watches.
Support Roger on Patreon: https://www.patreon.com/kainkalabs
European Mod for Solder:Time-Watch
https://kainkalabs.com/upload/?f=1569c51fd8eec9
Forum-Thread: https://forum.kainkalabs.com/forumdisplay.php?fid=13
Shop: http://www.ak-modul-bus.de/stat/laborzubehoer.html
Further Links:
Nixie Watch from David Forbes: http://cathodecorner.com/nixiewatch/index.html
Steve Wozniaks Nixie-Watch: https://youtu.be/m4R3hODnTGo
Jeff Thomas 4-Digit Nixie-Watch: http://www.nixie.dk/~jthomas/watch.html
Solder:Time Watch: http://www.spikenzielabs.com/SpikenzieLabs/SolderTime.html
Documentation: kommt noch als Link zum Download für European Mod Firmware
Solter:Time II Matrix Watch:http://www.spikenzielabs.com/SpikenzieLabs/SolderTime_2.html
Forum: https://forum.kainkalabs.com/forumdisplay.php?fid=3
Shop: http://www.ak-modul-bus.de/
twitter: http://twitter.com/kainkalabs
facebook: http://facebook.com/kainkalabs")
![Every Maker should have...[Pt 38]...an ATX Power Supply Adapter](https://i.ytimg.com/vi/rcdEReDe1VU/mqdefault.jpg "Every Maker should have...[Pt 38]...an ATX Power Supply Adapter
Recycle your surplur ATX power-supply for a lab-bench power-supply with fused outputs (1,25A), bipolar 12V, 5V and a unipolar 3,3V output.
Support Roger on Patreon: https://www.patreon.com/kainkalabs
Detailed description at Dangerous Prototypes:
http://dangerousprototypes.com/docs/ATX_Brakout_Board_design_overview
Buy it at Seeedstudio:
https://www.seeedstudio.com/atx-breakout-board-bench-power-supply-p-1222.html?cPath=155
Additional acrylic case recommended:
https://www.seeedstudio.com/ATX-Breakout-Board-V1.1-Acrylic-Case-V1-%28DP10080%29-p-1288.html")
