I do a teardown and test of a Victron Energie Atlas Combi 12-800. It is a combined battery charger and 230VAC inverter. The battery charger of the Atlas Combi is suitable for a 230 VAC, (50 Hz) mains voltage. The charger works automatically, so batteries may remain permanently connected to the charger, even during winter
Victron Energie Atlas Combi 12V/800W Battery Charger/Inverter Teardown Read More »
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 »
Cable TV Networks This Cisco headend/hub RF combining and splitting networks is used in Hybrid Fiber-Coaxial networks. HFC is a telecommunications industry term for a broadband network that combines optical fiber and coaxial cable. Advanced HFC networks include numerous 2-way interactive services that have changed the requirements for the configuration and flexibility of the systems.
Cisco 9900 Series 50-1000MHz RF Signal Splitter Teardown Read More »
In this video I install and test the analog audio interrupter and gives a walk-through on how I am using it. All schematics for the circuits and PCB layouts are available at the project thread: Project thread: https://highvoltageforum.net/index.php?topic=1417.0 The DRSSTC analog interrupter audio input is quite simple and build up around a single LM339 op-amp.
Tesla Coil Show Controller – Analog Audio Interrupter and Test (Part 6 of 8) Read More »
The ALTIVAR 58 (ATV58) family of adjustable frequency AC drive controllers is used for controlling three-phase asynchronous motors. This controller in from the range of: 1–75 hp (0.75–55 kW) constant torque (100 hp variable torque), 400/460 V, three-phase input. In this teardown, I am giving you an overview of how its built, non-destructively as the
Telemechanique Altivar 58, 10kW Motor Drive Teardown Read More »
I found a discarded street light head at a scrap yard and wanted to give it a new life instead of being shredded. Re-use, re-purpose or re-invent. Do not just throw out stuff, see if you can use it in another way. The Earth Overshoot Day is something to take seriously. https://www.overshootday.org/ The original lamp
DIY 30W LED Work Lamp From a Discarded Street Light Read More »
Teardown of some old and discarded DVB MPEG-2 Decoders that have been used in a large buildings distributed TV network. Despite that units look the same on the outside, they turned out to be very different hardware revisions on the inside. The front of the Tandberg unit only has a display and 4 input keys.
Tandberg TT1200 DVB MPEG-2 Decoder Teardown Read More »
In this video I mount, update and test the Syntherrupter with its MIDI capabilities and gives a walk-through on how I am using it. Some of the details from the video is written as a part of this post. To read all the parts, read the article about the complete DRSSTC controller project. First I
Tesla Coil Show Controller – Syntherrupter Installation And MIDI Test (Part 5 of 8) Read More »