Design of a Korg Nutube Amplifier
Audio

Design of a Korg Nutube Amplifier

Karlwoodward @ www.rs-online.com/designspark is in the process of designing a “guitar pedal” for amplification and distortion using the Korg Nutube we featured earlier. The Part 1 of a series of articles goes through the basic aspects of tubes and valves, the pros and cons on using...

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R&S®NGE100 power supply series with WiFi option
Test Equipment

R&S®NGE100 power supply series with WiFi option

The R&S®NGE100 power supply series consists of robust, high-performance, affordable instruments. They offer high efficiency combined with low ripple plus a variety of comfort functions that are not usually found in this class of power supplies. The R&S®NGE100 power supply...

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How to drive Nokia 5110 84×48 LCD display with Arduino
Arduino

How to drive Nokia 5110 84×48 LCD display with Arduino

In the previous tutorial I showed how to build a weather station using DHT11 and BMP180 with an Arduino. However, the project has a downside which is the power consumption of the 16X2 LCD. If we were building a battery powered project with the desire to last for several weeks and...

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Atmel ATmega8 – A World-Famous Microcontroller Created By Two Annoyed Students
ICMcu

Atmel ATmega8 – A World-Famous Microcontroller Created By Two Annoyed Students

AVR is a family of microcontrollers developed by Atmel beginning in 1996. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. The Atmel AVR core combines a rich instruction set with 32 general purpose working registers. Atmel’s ATmega8 comes from the AVR...

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CH340E, A New Small Serial to USB Chip
IC

CH340E, A New Small Serial to USB Chip

WCH, a Chinese integrated circuits manufacturer, has just released a new serial to USB chip called CH340E. Unlike other CH340 chips, it doesn't require an external crystal and also needs less PCB space and BOM. CH340 is a 3x3mm tiny chip comes in MSOP10 package and has 10...

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Using an ATmega328 without a crystal
Arduino

Using an ATmega328 without a crystal

Here is another guide from David Johnson-Davies @ technoblogy.com explaining how to program an ATmega328 on a breadboard using the Arduino IDE. The guide is focused on how to use the internal clock of the microcontroller and how to achieve this using the Arduino environment. By default...

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Programmable Power Supply Using OPA548
Power

Programmable Power Supply Using OPA548

Project provides 1.2 to 20V DC output with current limiter adjustable to 0-5A. I have tested the circuit with 250mA output without a heat sink. Project is capable to drive 3A continues load and 5A peak, large size heat sink required for full load. The tiny power supply based on low cost...

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Bomist – Parts Inventory and BOM Management for Electronics
Software

Bomist – Parts Inventory and BOM Management for Electronics

It all started a few years ago with Component Organizer, than BOMER and it's now called BOMIST. The software runs locally, so no server nor setup required and you can have as many databases as you want (just run as many instances of BOMIST as you want). Additionally, it is integrated...

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