Dell PowerEdge M1000E Blade Server Teardown

I came by a discarded full size Dell PowerEdge M1000E server rack. Full SAN, 2 large blade servers, 4 or 6 backbone switches, all power …

100$ Thermal Camera With 32×32 Pixel. HTi HT-02D Unboxing And Test

There is a huge difference from the very cheap 8×8 pixel thermal cameras, to the 32×32 and up to the 160×120++. The price seems to …

Star Wars – Imperial Death March, on a Musical Tesla Coil

Played on my own DRSSTC2 Tesla Coil: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/ Learn how to build your own DRSSTC to play music: http://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/ MIDI/Music interrupters you can build yourself: …

Doom 2 – Readme, on a Musical Tesla Coil

Played on my own DRSSTC2 Tesla Coil: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/ Learn how to build your own DRSSTC to play music: http://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/ MIDI/Music interrupters you can build yourself: …

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Teardown: Power Amplifier (Part 1 of 2)

Teardown of a Nokia Siemens Networks Flexi Multiradio base station. This have been in service as a 3 antenna system for mobile telecommunications. GSM/EDGE, WCDMA/HSPA …

10,000 subscribers on Youtube and Capacitor Discharge Explosions

In a celebration of reaching 10,000 subscribers on Youtube, I blew up some pieces of wire with my 2500uF / 2kV Maxwell energy discharge capacitor …

Chinese 2x100W TDA7498 Amplifier – Test and THD+n Measurements

I wanted a small Bluetooth amplifier for my work shop and bought some cheap bare-board versions from Ebay. This TDA7498 design is over-advertised, but not …

Teardown of a 5 kVA / 4 kW Eaton EX5RT UPS System

Teardown of a Eaton EX RT 5 kVA UPS model. The topology is a on-line double conversion with PFC (Power Factor Correction) system for a …

Chinese 2x50W Bluetooth Amplifier, Or Is It? A Poor Abused TDA7492P Design

I wanted a small Bluetooth amplifier for my work shop and bought some cheap bare-board versions from Ebay. This poor TDA7492P design is over-advertised and …

After Cleaning, What I Found… – End of Isolation, Day 42

I have turned my whole workshop around, been in every drawer, box, crate, container, shelf and cupboard. I sorted a lot of stuff, re-found a …