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Computer “Mikro-80” – a modern replica

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Published on: 28/08/2016

The computer “Mikro-80” was made in the Soviet Union in 1980 by a team of enthusiasts before in 1982, the magazine “Radio” began publishing its documentations and schematics. In a nutshell, this was the first accessible personal computer in the USSR; in that era, only single digits of people in the country had the ability[…]

Retrobyte Rev.B

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Published on: 31/07/2016

In my previous post, I explained my idea of a modular platform for building modern replicas of retro-computers, of which the Rev.A has already been built and tested. In the process, I found a few things to improve: On the silkscreen, the diode D1 was shown incorrectly (the cathode points to the anode) The voltage[…]

Retrobyte – a universal modular platform for building replicas of retro-computers

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Published on: 06/07/2016

During the time I worked on the “Agat-7” replica, I came across the need for constant changes and improvements; these resulted from either new ideas or troubleshooting. Some of these troubleshoots involve tinkering with the circuit board. Currently, I have four different revisions and modifications of PCB’s for “Agat”; this isn’t even the total amount,[…]

How to add bluetooth music playback in a car

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Published on: 10/04/2015

The multimedia center in my car is quite useful – it features a built in GPS navigator, a rear-view camera, an MP3 player and several other handy functions. However, its greatest weakness is the inability to play music via Bluetooth. The only supported option is the hands-free bluetooth phone connection mode. To listen to music[…]

“Maximite” computer

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Published on: 19/10/2014

Not so long ago I found out about a very interesting computer under the name of Maximite. It is built on the microprocessor PIC, on which are assigned all the main functions of this computer. This small device was made in 2011 and became popular enough so that now some games and programs were made for[…]

Spool holder and a fan for 3D printer

Categories: 3D printer, My Projects
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Published on: 18/10/2014

In the previous post, I promised to tell you about the holders that I made for the spool of plastic for my 3D printer. In the original kit, there is no holder or support for the plastic and it just sits there next to the printer. The spool, positioned thus, often tangles and requires constant attention. This[…]

3D printer MakerFarm Prusa i3 8″

Categories: 3D printer, My Projects
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Published on: 13/08/2014

It was always a problem to find a proper enclosure for my devices. So, I decided to build a 3D printer for these purposes. It is a great project to build. It can be used not only for customised enclosures but for all sorts of other projects. I didn’t want to buy a pre-build printer[…]

AGAT-7. Rev.0 summary and start of Rev.A design.

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Published on: 01/05/2013

I’m about to finalise my Rev.0 of the modern replica of the retro-computer “AGAT-7”. The next step will be Rev.A design with fixed mistakes, improvements and some new ideas. In this post I’m going to summarise the Rev.0 experience and share with you with some ideas for Rev.A. At the moment the Rev.0 computer starts[…]

Clock generation in FPGA with phase accumulator. Calculation and limits.

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Published on: 13/04/2013

In my project of a modern replica of a retro computer “Agat-7” I needed to generate several different clocks. Some of them can be produced by the PLL built in FPGA, others are a simple division of the main clock. But there is another group of clock signals that are not as simple to get.[…]

Hobby electronics lab

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Published on: 28/03/2013

I organised a temporary place for my hobby when I moved the house. It quickly became a mess because it didn’t have any drawers or shelves there. So, finally, I’ve decided to build a decent place for my home lab. I didn’t want to spend a lot of money on it but I needed something[…]

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