Hardware hacks

Telephone cards hacking history

Who remembers Phone booths and above all phone cards? Phone cards were a technological advance in the world of public telephone traffic in the 1990s. They allowed to make calls on many phone booths in Finland and phone cards were also a popular collector’s item, collected both used and unused: Telecom companies have placed advertising

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

Ethernet over coax – from UTP to coax

In this post I am talking about adapting 10 and 100 megabit twisted pair Ethernet to use coaxial cable instead of twisted pair wiring. Those 10BASE-T and 100BASE-TX Ethernet st standards use two wire pairs for communications (one for TX and other for RX). In this article I am describing how to adapt them to

LED hat project ideas

I saw an advertisement video of LED hat on Facebook some days ago. This kind of had might not be the best idea to wear on many parties, but maybe could have some uses for advertisement purposes. This kind of LED hat is something that makes hacker mind spinning. The hat had wireless connection so,

On Hacking MicroSD Cards « bunnie’s blog

This is a pretty interesting hardware hacking article: https://www.bunniestudios.com/blog/?p=3554 Some SD cards contain vulnerabilities that allow arbitrary code execution — on the memory card itself. On the dark side, code execution on the memory card enables a class of MITM (man-in-the-middle) attacks, where the card seems to be behaving one way, but in fact it

Discrete component Pong game

This is nuts old-school hardware hacking reported at https://blog.hackster.io/video-pong-made-with-all-discrete-components-cbffe6a2721d and https://hackaday.com/2019/09/17/building-video-pong-with-discrete-components/. It seems that this was a slightly masochistic undertaking. The trick is that this classic video game is made out of discrete components — it is 100% IC free. I like the beauty of it’s complex wiring! Look at the video of it: There is

Microphone hardware hacking with a hammer

I have had for a long time an AKG D60 S microphone. The AKG D60S is advertised as an unidirectional semiprofessional dynamic microphone with smooth frequency response, a rugged all-metal body, an on/off switch, and removable wire-mesh grill.  It was proven to be a decent semiprofessional all-round microphone with hypercardioid polar pattern. Hypercardioid microphones are