The burn-in process of tubes can be loud, and take 2-3 days. So better push that sound to dummy speakers. Matt Renaud gave me the idea on DIY Audio Projects. His web site is as well of prime quality, see his post on about the same test equipment. Pete Millett …
Replace the cunningham pulley
Replace your cunningham pulley with a stronger one.
Fly-High
Hot-air balloon flight over the Seeland, 11.8.2016
EuroPython, Bilbao, july 2016
After one week of EuroPython 2016 in Bilbao, I have learned a lot of things, seen a lot of good tracks and keynotes, met a lot of very smart people, and certainly participated in a very well organized event. Thanks to the organizers and sponsors to prepare such a great …
Bass fixed
I have got this huge, heavy, Frudua bass guitar speaker to fix. A friend of my boy almost threw it away, right before I salvaged it. The passive circuit was ok, all drivers as well, all it took was some re-shaping of the internal wiring. Not really sure it works …
Tube galore
I’m building the uTracer 3+ so I thought getting some validation hardware would be smart. Ricardo took care of it, now I have a tube galore at home, probably enough to store 10-12 bytes or produce ~ 5‘000 W of warm feeling.


New Sound
During my Christmas holidays, I took the time to build a new Hi-Fi amplifier. Not just anyone. A tube amp. Specifically, I ordered a Elekit TU-8200 Stereo Tube Amplifier Kit from TubeDepot. Fedex took its time, but I got it in pieces and started building it.

The kit is …
Cisco DevNet Express, Berlin, dec. 2015
Coming back from Cisco DevNet hackaton in Berlin, I must admit that Cisco has got some points: they offer REST API’s for their products, with clear documentation, and easy to use authentication. Most of the stuff we have touched are cool and easy to use, ready for your SOA …
Moode Audio Rocks
Moode Audio on a Raspberry Pi with a Hifiberry DAC rocks (BTW, Hifiberry is a swiss company, so I’m proud of buying their products). I can’t imagine doing any sort of productive work without them and Radio Paradise. By the way, if you listen to Bill & Rebecca’s …
Moving to Pelican
I have decided to move away from Wordpress for my home page. Reasons are, maintaining it with all the upgrades of Wordpress, themes and plugins is stressful, because you need to keep up with all the security issues. To avoid them, I used mod_security, but the config gets complicated as …