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 quadruple with the pixel count. In this video I am testing the HTi HT-02D Thermal camera that I was able to get at 100$ on offer. This is not a
100$ Thermal Camera With 32×32 Pixel. HTi HT-02D Unboxing And Test Read More »
Played on my own DRSSTC2 Tesla Coil: https://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/ Learn how to build your own DRSSTC to play music: https://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/ MIDI/Music interrupters you can build yourself: 4 channel polyphonic MIDI: https://highvoltageforum.net/index.php?topic=1020.0 1 channel compact/simple USB MIDI: https://highvoltageforum.net/index.php?topic=1117.0 1 channel analog audio: https://kaizerpowerelectronics.dk/tesla-coils/musical-sstcdrsstc-interrupter/ Learn how to build your own Tesla coil and how to make it play
Star Wars – Imperial Death March, on a Musical Tesla Coil Read More »
Played on my own DRSSTC2 Tesla Coil: https://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/ Learn how to build your own DRSSTC to play music: https://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/ MIDI/Music interrupters you can build yourself: 4 channel polyphonic MIDI: https://highvoltageforum.net/index.php?topic=1020.0 1 channel compact/simple USB MIDI: https://highvoltageforum.net/index.php?topic=1117.0 1 channel analog audio: https://kaizerpowerelectronics.dk/tesla-coils/musical-sstcdrsstc-interrupter/ Learn how to build your own Tesla coil and how to make it play
Doom 2 – Readme, on a Musical Tesla Coil Read More »
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 and LTE capable. 3×70 Watt output power. Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part 2 of 2)
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 storing 4kJ of energy. I also started a new dedicated slow motion video channel, please subscribe if you like to see more non-electronics videos recorded at high speeds: https://www.youtube.com/channel/UCB2qu77PCr5i9zcs0sOhp4w/
10,000 subscribers on Youtube and Capacitor Discharge Explosions Read More »
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 as bad as other cheap bluetooth amplifiers from ebay. Test, frequency response and THD+n measurements show how good it compares to the promised performance of the TDA7498 datasheet. My own
Chinese 2x100W TDA7498 Amplifier – Test and THD+n Measurements Read More »
Teardown of a Eaton EX RT 5 kVA UPS model. The topology is a on-line double conversion with PFC (Power Factor Correction). The system is rated for a active power output of 5 kVA / 4 kW. I have also other teardown videos of 20 kVA UPS, 30 kVA UPS or even up to 60
Teardown of a 5 kVA / 4 kW Eaton EX5RT UPS System Read More »
I wanted a small Bluetooth amplifier for my work shop and bought some cheap TDA7492P bare-board versions from Ebay. Luckily there is other good Bluetooth amplifiers! This poor TDA7492P design is over-advertised and abused enough that I requested my money returned from the seller. Discussion of this review: https://highvoltageforum.net/index.php?topic=1057.0 Not a paid review, bought for
Chinese 2x50W Bluetooth Amplifier, Or Is It? A Poor Abused TDA7492P Design Read More »