#zx81 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #zx81, aggregated by home.social.
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Next step replace the ancient 7405 voltage regulator with a modern decent one.
But I'm on the fence whether to do anything else to this. I think I'd prefer to keep it pristine(ish).
It feels like these initial mods are in keeping/acceptable to the age of the zx:
* connecting to an analogue TV is impractical now, so a composite upgrade feels ok
* the keyboard membrane was toast (cracked and disintegrating) - the replacement looks identical
* and the power regulator can be updated on the same footprint to solve the power/heat issues.
I *could* upgrade the internal ram to remove the need for the external ram cartridge and fit a modern FPGA ULA to fix the video quality and add features like 32k support and high res graphics..... but that feels wrong somehow wrong and too much. 🤔
#retrocomputing #zx81 -
Next step replace the ancient 7405 voltage regulator with a modern decent one.
But I'm on the fence whether to do anything else to this. I think I'd prefer to keep it pristine(ish).
It feels like these initial mods are in keeping/acceptable to the age of the zx:
* connecting to an analogue TV is impractical now, so a composite upgrade feels ok
* the keyboard membrane was toast (cracked and disintegrating) - the replacement looks identical
* and the power regulator can be updated on the same footprint to solve the power/heat issues.
I *could* upgrade the internal ram to remove the need for the external ram cartridge and fit a modern FPGA ULA to fix the video quality and add features like 32k support and high res graphics..... but that feels wrong somehow wrong and too much. 🤔
#retrocomputing #zx81 -
Next step replace the ancient 7405 voltage regulator with a modern decent one.
But I'm on the fence whether to do anything else to this. I think I'd prefer to keep it pristine(ish).
It feels like these initial mods are in keeping/acceptable to the age of the zx:
* connecting to an analogue TV is impractical now, so a composite upgrade feels ok
* the keyboard membrane was toast (cracked and disintegrating) - the replacement looks identical
* and the power regulator can be updated on the same footprint to solve the power/heat issues.
I *could* upgrade the internal ram to remove the need for the external ram cartridge and fit a modern FPGA ULA to fix the video quality and add features like 32k support and high res graphics..... but that feels wrong somehow wrong and too much. 🤔
#retrocomputing #zx81 -
Next step replace the ancient 7405 voltage regulator with a modern decent one.
But I'm on the fence whether to do anything else to this. I think I'd prefer to keep it pristine(ish).
It feels like these initial mods are in keeping/acceptable to the age of the zx:
* connecting to an analogue TV is impractical now, so a composite upgrade feels ok
* the keyboard membrane was toast (cracked and disintegrating) - the replacement looks identical
* and the power regulator can be updated on the same footprint to solve the power/heat issues.
I *could* upgrade the internal ram to remove the need for the external ram cartridge and fit a modern FPGA ULA to fix the video quality and add features like 32k support and high res graphics..... but that feels wrong somehow wrong and too much. 🤔
#retrocomputing #zx81 -
Next step replace the ancient 7405 voltage regulator with a modern decent one.
But I'm on the fence whether to do anything else to this. I think I'd prefer to keep it pristine(ish).
It feels like these initial mods are in keeping/acceptable to the age of the zx:
* connecting to an analogue TV is impractical now, so a composite upgrade feels ok
* the keyboard membrane was toast (cracked and disintegrating) - the replacement looks identical
* and the power regulator can be updated on the same footprint to solve the power/heat issues.
I *could* upgrade the internal ram to remove the need for the external ram cartridge and fit a modern FPGA ULA to fix the video quality and add features like 32k support and high res graphics..... but that feels wrong somehow wrong and too much. 🤔
#retrocomputing #zx81 -
Ok... back porch composite mod fitted, still no joy with desktop LCD... But YAY the 4k with video processor can show it! Ooooh.
#zx81 -
Mathematics 1 (longplay) for the ZX81
https://www.youtube.com/watch?v=P4gsqvQ7Yy0
#Mathematics1 #ZX81 #Education #Educational #Edutainment #Math #Maths #Mathematics #FunToLearnSeries #FunToLearn #Longplay #SinclairResearch #WHSmith #ICL
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History 1 (longplay) for the ZX81
https://www.youtube.com/watch?v=C6T9vciNars
#History1 #ZX81 #Educational #Edutainment #Quiz #Trivia #England #GreatBritain #History #EnglishHistory #BritishHistory #Monarchy #BritishMonarchy #EnglishMonarchy #FuntoLearnSeries #FuntoLearn #Longplay #ICL #WHSmith #SinclairResearch
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Egad! 7 key British PCs of the 1980s Americans might have missed - Enlarge
If you grew up in America, the early history of home ... - https://arstechnica.com/?p=1922835 #sinclairresearch #sirclivesinclair #vintagecomputing #acornarchimedes #amstradcpc #britishpcs #zxspectrum #alansugar #nostalgia #features #bbcmicro #tech #zx81 #bbc