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Apple II Colour Demodulator
256byteram
63 views
I'm working on a circuit that can demodulate the NTSC output of an Apple //c to a YUV component signal. This is the basic concept of the circuit working, which currently on...
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Shibaden SV-700 Video Recorder Test
256byteram
154 views
I'm repairing this video recorder for a friend. It was made circa 1968 and still works quite well. It definitely needs a new capstan belt though, which I hope to get.
Ther...
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More Television Fractals
256byteram
90 views
This is a CCTV multiplexer which can show four individual cameras on a monitor in four quadrants, which I have connected a single camera to, then pointed back at the monito...
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Television Fractals
256byteram
109 views
This is what happens when you take a video multiplexer (used to show four CCTV cameras on one screen), connect a camera to all four inputs, then point the camera back at th...
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Fractals
256byteram
98 views
More attempted boredom relief.
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Space Quest II in Composite Colour (IBM PC/XT capture)
256byteram
166 views
I put my IBM PC/XT together after finding its CGA graphics card. I had played with the NTSC Colour emulation in DOSbox before but I thought I'd try it on the real thing.
S...
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4-bit Homebrew CPU - counting test
256byteram
808 views
This is an extremely primitive CPU I've been stressing over for the past week or so. It operates on 4 bits at a time, but the accumulator, program counter and Index registe...
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Synth Confusion
256byteram
121 views
I got an old oscilloscope off ebay which I could remove the graticlue from, so I can place a camera in front of it without any lines getting in the way.
Colourised with my...
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Three Oscillators 2
256byteram
116 views
This is three oscillators again, but one is being put through a sample and hold (based on an LM13700), which is being controlled by one of the other oscillators. This makes...
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Three Oscillators
256byteram
194 views
This is three quadrature oscillators with the outputs summed together and fed into an oscilloscope in X/Y mode. I'm adjusting the frequency of one oscillator by a small amo...
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