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Watching: Latest videos by 256byteram

8080 Computer playing Portal Still Alive Posted by: 256byteram Video duration: 176 seconds Bah. I liked the terminal theme from Portal so I made it real! Everything on the terminals and sound is controlled by an Intel 8080 Microprocessor at 2MHz. The sound chip is a MOS SID (From a Commodore 64). The assembler source code is at http://kaput.retroar chive.org/downloads< br /> More details for the computer system itself can be found at http://kaput.retroar chive.org/ Related: 8080, alive, coulton, intel, jonathan, portal, song, still

	8080 CP/M Computer running Zork 1 Posted by: 256byteram Video duration: 69 seconds A video of a computer I built which runs CP/M 2.2. Related: 8080, boot, cpm, zork

YM2151 - Beethoven's 7th Symphony Posted by: 256byteram Video duration: 465 seconds A Yamaha YM2151 FM Synthesiser IC playing the Second Movement of Beethoven's 7th Symphony. The CPU of the synth is a MOS 6510 CPU from a Commodore 64. The music was played over a MIDI interface. If you notice any synchronisation glitches with the different instruments it's because they weren't recorded at the same time, but separately and mixed later. Related: beethoven, digital, fm, synthesizer, yamaha, ym2151

	YM2151 - Sinfonia to Cantata no 29 Posted by: 256byteram Video duration: 254 seconds I couldn't make a collection of synthesized classical pieces without skipping over this. The pipe organ patch is the same as Toccata and Fugue, but I've improved the channel selection code so it doesn't click when a new note starts. Related: bach, cantata, digital, fm, sinfonia, synthesizer, yamaha, ym2151

	YM2151 - Little Fugue in G Minor Posted by: 256byteram Video duration: 230 seconds My YM2151 synth playing J.S. Bach's Little Fugue in G Minor. I've loved this piece ever since I first heard it when I was four. Related: bach, digital, fm, synthesizer, yamaha, ym2151

	Analogue Pong - Finished Game Posted by: 256byteram Video duration: 60 seconds So it's finished. Getting actual game play was the most difficult part so it took me a few days. The circuit diagrams should be about any week now. Update: circuit diagrams at http://kaput.retroar chive.org/pong.html Related: analog, analogue, pong

	Oscilloscope Television Posted by: 256byteram Video duration: 28 seconds A shot of my HP 1742A oscilloscope playing the Dr Who intro. The circuit to generate the horizontal and vertical sweeps uses UJT's. Related: cro, dr, oscilloscope, television, tv, who

Bush Simpson 21BC92 Television Posted by: 256byteram Video duration: 146 seconds I've had this old television for a while now. It mostly works, but not completely. The deflection is weak, brightness isn't very strong and the sound isn't very loud. The power supply appears to be good (no smoke, heat) so I'm guessing there's a stage that's drawing too much power. It looks like YouTube has *really* degraded the quality of the video and audio too... Related: bush, simpson, television, vintage

	Analogue Pong - Bouncing Ball Posted by: 256byteram Video duration: 82 seconds Next thing to get going is a bouncing ball. Update: circuit diagrams at http://kaput.retroar chive.org/pong.html Related: analog, analogue, pong

Analogue Video Effects (silent) Posted by: 256byteram Video duration: 50 seconds This is the output of a circuit I put together today because I was bored. It uses a comparator to send the video output either high or low, with the chopped point adjustable with a potentiometer. The sync signal and colour subcarrier are then recombined. The sync pulses need to remain untouched to keep the video stable, and the colour makes it easier to distinguish between objects. Related: analog, analogue, effect, synthesis, video

	Electronic Lava Lamp Posted by: 256byteram Video duration: 166 seconds Same sliced effect as before, but the camera is zoomed out as far as the table will reach so the blobs linger on the screen longer. The effect is like a video lava lamp. I wrote the music myself. It is played in Rosegarden and the synthesiser is ZynAddSubFx. Related: analog, analogue, feedback, video

	Sliced Chrominance Feedback Posted by: 256byteram Video duration: 89 seconds Same deal as before, only the colour information is getting through to the monitor. This time I've sliced it so no saturation information gets through either - this makes it very weird. More coming! Related: analog, analogue, feedback, television

	Colour Feedback Posted by: 256byteram Video duration: 62 seconds This is video feedback with a circle of cardboard on the screen and a luminance filter between the camera and the monitor, but with circuitry to allow the sync pulses through. Related: analog, analogue, color, colour, effects, feedback, video

	Analogue Pong - Paddles Posted by: 256byteram Video duration: 38 seconds So I've decided to make a game of Pong using only analogue electronics. Here's the first stage, the paddles. Circuit diagrams might be around eventually. Update: circuit diagrams at http://kaput.retroar chive.org/pong.html Related: analog, analogue, pong

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