Tiny Drones

Latest-generation drones now cost around $1,000, if not more. Or how about … $10? Seriously! Teardown: A tiny drone and its controller article tells about Cheerson CX-10 Quadcopter that can be picked for around $10. I picked one at slightly higher price (around €15) from Banggood or DX, to get the idea of today’s drones. I

Four channel DMX-512 light dimmer

I happened to find this AnyTronics 4 channel dimmer thrown out as trash. It looks looks like Anytronics wall mounted dimmer 4 x 10 A that someone has adapted to become rack mounted and moved the DMX-512 address selection switches outside the device. I expected that Anytronics DP410 dimmer pack installation instructions would be about

SSR teardown

A solid state relay (SSR) is an industrial component used for interfacing low voltage control signals to high current mains voltage loads. The SSR may be designed to switch either AC or DC to the load. It serves the same function as an electromechanical relay, but has no moving parts. You can control SSRs easily

RSA SecurID older model teardown

The RSA SecurID authentication mechanism consists of a “token” — either hardware (e.g. a USB dongle) or software (a soft token) — which is assigned to a computer user and which generates an authentication code at fixed intervals (usually 60 seconds) using a built-in clock and the card’s factory-encoded random key (known as the “seed”).

RSA SecurID teardown

RSA SecurID is a  two-factor authentication device. It gives out number that change depending on the time, and correct number is needed to log-in to sensitive systems (=one-time password functionality).  RSA SecurID 700 is a small key fob that connects easily to any key ring. Here is  front panel of RSA SecurID 700. There is

Qi receiver teardown

I have previously tested Qi wireless charging receiver model Universal Qi Wireless Charging Receiver Kit For Micro USB Cellphone.This Universal Qi Wireless Charging Receiver Kit For Micro USB Cellphone a about a size of a credit card and ultra-thin in design. It is designed so that it could be installed inside cell phone – or it

Hq Power adjustable PSU

Here is teardown of one failed power supply. What is inside Two 6.8 uF 400V capacitors had failed and burned the mains fuse. Good design that it was well protected. But again the failure was bad electrolytic capacitors. This device was not worth to repair.

Touch dimmer tear-down

This is a tear-down of one TT6061A based touch dimmer that could not handle touch and failed (static electricity killed it). This dimmer module manufactured by Eaglerise was found inside a desk lamp. Inside view The construction inside looks pretty OK. There is a proper normal fuse there (tiny ceramic fuse) and also over-temperature protection