Collection of all the articles published on this site:
–Computer;
– Electronics;
– Computer science;
– Linux and Windows systems.
– Retro Technology;
– RetroComputer;
– Audio systems;
– Vintage Electronics and other Devices;
– Repairs and experiments carried out by me.
By Amedeo Valoroso.
Here is the complete list of commands, functions and variables reserved for the Commodore 64's Basic V2, with a simple explanation. This is a simple compendium to remember all the commands, instructions and functions, when you already [...]
In this video article we talk about how to build a replica of The Final Cartridge III+. Let's see how to get the printed circuit board of the interface on PCBWay, how to solder all the electronic components and how to program the EPROM through the cheap programmer TL866II Plus. [...]
We reconstruct the corroded tracks of the printed circuit and solder the socket of the Paula CSG 8364R7 audio chip: here is the second installment of the never ending story of the Amiga 500 Repair and Test that I bought last year. In the previous video, I [...]
Welcome to the second episode of the column: “The Latest Discovery of Retro Technology”! We see the Penny record player internally, clean it and analyze how it works. Country of production: Italy.Manufacturer: MusicalNastro, MusicalSound.Model: Penny 222D.Years of production: 1975 – 1988.Operating voltages: 220 Volt […]
Let's repair the power supply of the Atari 1050 floppy disk drive, which, in the previous video, had blown the power! Even if it's just a transformer, the repair made me sweat! I recommend, always unplug when working on electrical circuits: [...]
Today I begin to tell you the never-ending story of the repair of the Amiga 500 that I bought last year and that I hoped to be able to use quickly! Purchase of the Amiga 500 I found an interesting advertisement on Facebook Marketplace. According to the seller, the computer was [...]
The repair of an Amiga 500 came in handy to make a tutorial on how to desolder a socket, from the PCB, with the ZD-8915 desoldering station. In the video, at 9:35, there is a tutorial on how to set up and use the station [...]
I recently purchased an Atari 800XL, complete with Atari 1050 floppy disk drive. Here is the unboxing and first boot... with short circuit! Before turning on a computer that has not been used for years, remember to follow the steps in this video article. Advice […]
In this video, we see how to improve the picture quality of the Commodore 64, 128 and Commodore 16 by using an S-Video cable instead of the Composite Video (CVBS) cable. If you connect your Commodore to a modern LCD TV, plasma [...]
It can happen that, sometimes, you forget the PC turned on and remain in operation throughout the night. In this article, we see how to automatically turn off the PC at a scheduled time, appropriately setting Windows 10. Let's also see how to avoid [...]
Welcome to the seventh installment of the Basic language course. It is a very practical episode! Let's see how to create a sprite for the Commodore 64, with SpriteMate, in a really simple and fast way. Using an example program in Basic, we move the [...]
The bike struggles to start? The scooter does not turn on? The starter is spinning, but the engine is not starting? Or, even, the starter does not even turn? Probably the fault lies with the battery, which needs to be replaced. Let's see [...]
Welcome to the new section: "The Latest Rediscover of Retro Technology"! Today we talk about my latest purchase: a Telefunken Mignonette MF R231 tube radio. The Telefunken Mignonette MF tube radio dates back to 1955, 1956. The audio amplifier is with EL84 valve [...]
In today's video, we see how to connect two color monitors to the Commodore 128, using the RGBI output, in addition to the video output. The Commodore 128 is in fact equipped with a second graphics chip, the VDC, whose signals come out on the rear door [...]
Welcome to the sixth installment of the Basic Programming course. Today we see how to write and read a file in Basic, with the instructions Open, Close, Print # and Input #. Learn to program in Basic, on which computers? The program of [...]
Today we talk about the 1541 Diagnostic Cartridge by Jani. This interface contains a series of utilities to check your Commodore 1541 floppy disk drive (head alignment, rotation speed, etc…). We analyze both the hardware and the features of the 1541 Diagnostic [...]
In this video, with an exceptional guest, Francesco Sblendorio of Retrocampus, we see how to connect a Commodore MPS803 dot matrix printer to a modern PC with Windows 10 operating system! If you are interested in assembling the XUM1541 kit, you can consult this [...]
In this video tutorial, we see how to connect the Commodore 1541 floppy disk drive to the Windows 10 PC. From 7:13, we also see how to use the various software used to transfer files: OpenCBM and CBM Transfer (written CBMXfer). The interface [...]
In this video tutorial, we see how to connect the XUM 1541 adapter to the PC and how to install the XUM1541 drivers on Windows 10. We also see how to install the various software used to transfer files: OpenCBM and CBM Transfer (written CBMXfer). [...]
Welcome to the fifth installment of the Basic Programming course. Today we see the RND function, which generates pseudo-random numbers, the INT function, which returns the integer part of a number and also the TIMER system variable. We implement the [...]
I ordered an XUM1541 mounting kit on eBay. This interface allows you to connect the original Commodore 1541 drive (with IEC port) to the USB port of a Windows PC (also Windows 10). In this video tutorial, let's see how to build one [...]
Many of you have contacted me and asked me how to turn the Commodore back on, after so many years of inactivity, without doing damage. Let's see what to do to turn on (turn on) an old computer (a Commodore 64, a Commodore 16, a Vic20, a C128 [...]
I bought on eBay some spare RAM memories for the Commodore 64 (biscuit version), from China, at low cost. Will they have worked? Do you have to pay attention to buying RAMs from China? Here are the results of the Commodore 64 RAM test! [...]
Welcome to the fourth installment of the video course on Basic language. Today we introduce vectors, also called arrays, which are data structures. We also see the concept of average, minimum and maximum value of a sequence of numbers. Not at least, […]
In this video, I saved and reloaded a Basic program on open reels, via a reel recorder connected to the Commodore 64. The hardware part The reel recorder of the experiment is an Aristona EW5504, equivalent to the Philips N4504. I have it [...]
In this tin soldering tutorial, we build an MP3 to C64. In practice, it allows you to load and record programs, games, using the Commodore datassette port. I take advantage of the assembly of this circuit to show you how the [...]
In today's video tutorial, we see how to build a Paddle for Arkanoid, to be used with the Commodore 64. We only use a 9-pin D-Sub connector, a 470 KOhm potentiometer, and a microswitch. Regarding the aesthetic aspect, you will be able [...]
Welcome to the third round of the Basic programming tutorial. The Basic program we make today is a fitness training timer. To be notified when the fourth episode comes out, you can subscribe to the YouTube channel (and activate the bell [...]
Have you ever thought about building a starter unit for your car with the Commodore 64? In this experiment, I built a ECU for the Fiat X1 / 9 with the Commodore 64! The Fiat Bertone X1 / 9 of the experiment is an example of the [...]
Today, in the video, we talk about gaming, with the games KikStart and KikStart II (KikStart 2) for Commodore 64! KikStart and KikStart II are two motocross games. It is possible to play alone or with two players. Although many write [...]