Electrical power

AV disaster: PowerCON plugged

No audio signal. Only humming. This is how 6.3 mm plug and PowerCON meet. There are XLR and Speakon combo connectors designed for things like this. But this is PowerCON connector designed to carry mains power. Read more on PowerCON at https://www.epanorama.net/newepa/2018/10/01/powercon-connector/ Fortunately the 6.3 mm plug here only connects to the center ground pin.

European Energy Crisis

Germany and the EU have spiraled headfirst into the globe’s worst energy crisis since the Arab oil embargoes of the 1970s and 1980s. All across the continent, Europe’s energy policies have led to astronomical price increases, industry shutdowns, potential energy shortages, and geopolitical vulnerability. The European Union and its 27 member states have invested more

Speakon power

I just saw this Facebook post in AC Disaster group and had to react to it! Source: Post by Jerry Hicks at AV Disasters Facebook group (used with permission) Almost clever! You can actually plug in US charger to speakon connector and have it to make contact with two “pins” (1- and 2-). You can

Electrical power in Greece

In Greece the standard mains power voltage is 230 V and frequency is 50 Hz. The power plugs and sockets are of type C and type F. I also saw some Type L (Italian) power oulets at hotel This is a somewhat strange looking extension cord. Thetr are somewhat strange looking outlets on this permanently

Outdoor wiring dip loops

What is a drip loop? https://blog.solidsignal.com/tutorials/what-is-a-drip-loop/ The drip loop is a slack bit of cable that sits lower than the rest. The whole purpose is to let water pile up at the bottom and drip off. If your cables were tight, water from outside could travel down the wire and get straight into an outlet

Space weather issues to satellites

Space had too harsh weather conditions for recent Starlink communications satellite update. 40 Starlink satellites doomed: SpaceX reported last night that 40 of the 49 Starlink satellites launched to low Earth orbit on February 3 are now doomed by a geomagnetic storm. SpaceX said: “The satellites deployed on Thursday were significantly impacted by a geomagnetic

The shocking power supplies

Transformerless power supplies are showing up a lot, especially in inexpensive products where the cost of a transformer would add significantly to the BOM. But transformerless power supplies are a double-edged sword. You can get yourself easily electrocuted if you don’t understand them and take proper safety precautions. Poking around in a transformerless-powered device can