Danish Audio ConnecT – Denmark

Danish Audio ConnecT. High quality audio parts. High-End Audio Parts for Hi-Fi, A/V and Pro-Audio. DACT products are used by audio and A/V audio equipment manufacturers and by DIY audiophiles throughout the world.

Danish Audio ConnecT – Denmark

Back in 1995, the first DACT product was the well-know CT1 and later CT2 stepped attenuator, which still today remain the single most recognized state-of-the-art audio volume control.

Danish Audio ConnecT - Denmark

The CT100 is a two-channel phono preamplifier module with very accurate RIAA equalization and many features. It is realized with the best semiconductors available and non-inductive, low noise, SMD metal film resistors. The circuit is designed to accept both moving coil (MC) and moving magnet (MM) transducers/cartridges directly in order to eliminate the need for an external MC step-up transformer or amplifier. MC/MM input loading and input nominal level values are easy to select with high resolution by DIP-switches.

Danish Audio ConnecT A/S
Skannerupvej 14, DK-6980 Tim, Denmark.

Build Electronic Circuits Like a Pro

If you want to build electronic circuits, you need to connect the components of your circuit somehow. If you expect to make your circuit work more than just a few times, you need a solid way of connecting them. You need to create a printed circuit board (PCB).

“I started playing with electronics as a hobby when I was 14. Since then I have finished a Master’s degree and founded two electronic design companies.”

Build Electronic Circuits Like a Pro

Radar Circuit

The radar sensor uses a Ultra-Wideband (UWB) chip from Novelda. It sends out electromagnetic pulses and analyzes the pulses that are reflected back. In the video above, a part of the electromagnetic pulse will be reflected back when it hits the wall and a part of it penetrates the wall and is reflected from the cabinet behind the wall.

Radar Circuit Enables See-through Wall Robot

delabs – This is a nice Educational Website built by Oyvind from Norway. Only when we read and learn from the experience and views of others, our brain opens up to new ideas and we develop a wide perspective.

Electronics pages of Erik Grindheim and Engineering Assistant

Some projects are Audio VU meters, Serial Port PIC programmer and other interesting articles.

Electronics pages of Erik Grindheim and Engineering Assistant

From Hobby Hound – DIY Electronics

Engineer’s Assistant – Electronic hand-held instrument invented by mr. Voja Antonic. It’s based on Microchip’s PIC16F84 (running at 10 MHz) and a standard 2×20 character LCD-module.

Engineering Assistant Using PIC16F84A

This compact instrument is intended to be a digital laboratory tool for hardware and, in some cases, software debugging. It contains four instruments in one unit: logic probe, single channel logic state analyzer, frequency counter and serial code receiver.

Electronic DIY Projects from Dago

Kalle Hyvönen an electronics enthusiast from Finland has made many interesting. In childhood dismantling of all kinds of electronic devices was his main occupation. That is what makes him a Wizard Today.

Electronic DIY Projects from Dago

“Here’s a quick project I made in couple days or so. It is a push-pull step-down laser diode driver based on LT1683 SMPS controller chip from Linear Technology.”

Switchmode laser diode driver based on LT1683

Switchmode laser diode driver based on LT1683

“I’ve been thinking about making a temperature logger for my room and my computer, I set on using DS18S20 sensors from Maxim because they’re common, cheap and overally pretty ideal. My computer is so new that it does not have a serial port “

USB-to-1-wire Adapter

USB-to-1-wire Adapter

“I also built a humidity sensor to my 1-wire network from a DS2438 chip and a HIH4000 humidity sensor.”

Lars Petersen OZ1BXM QRP Denmark

Amateur radio homepage by Lars Petersen of Holstebro, Denmark. The Useful Articles include some good rules for the QRPer and Main HF rig and antenna.

Lars Petersen OZ1BXM QRP Denmark

CW, QRP, and satellites. Satellite radios and PIC experiments like the one below

The K3 testboard for 16F873

 K3 testboard for 16F873

The main components are: A 7805 bolted to a small heatsink, a blue reset button, a red LED, a serial I2C EEPROM (24LC256), four DIL switches, the 16F873 with 4 MHz crystal oscillator, a real time clock (DS1302) with lithium battery backup and a MAX232 for serial communication. I’m using an external power supply which is able to provide 12V DC at 300 mA.

Ham radio blog by OZ1BXM

SSPA for 2 meters – 1 kW module

SSPA

The core of the SSPA is the 1 kW amplifier module. The module is built around the LDMOS transistor MRFE6VP61K25H from Freescale. This device can operate between 1.8 MHz and 600 MHz and delivers 1250 W output. In this application, the output is limited to 1000W.