Teardown of a Nokia Siemens Networks Flexi Multiradio amplifier. This was for example used for mobile phone base station installations and this particular part is a 2×50 Watt FRGL amplifier. This have been in service as a 2 antenna system for mobile telecommunications. It is GSM / EDGE and WCDMA / HSPA capable. Nokia Siemens […]
Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown (part 1 of 3) 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 »
This is part 2 of my diy led flood light that is going to be used for high speed video filming with the FPS1000HD camera. It should be able to deliver around 20000-25000 Lumen. Here I modify 3x HP server power supplies to deliver 36VDC, add fan controllers for the heat sinks and box it
DIY 250W LED Flood Light for High Speed Filming, Part 2 of 3. Read More »
This is part 1 of my flood light project, that is going to be used for high speed video filming with the FPS1000HD camera. It is being built form 5x 50W LED COBs mounted on old Pentium4 CPU coolers. I got no affiliation with these sellers, but it is where I bought my parts: 50W
DIY 250W LED Flood Light for High Speed Filming, Part 1 of 3. Read More »