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Alysson Rowan

A computer geek, mineralogist and inveterate tinkerer who likes to use and abuse recycled parts.

Bideford, Torridge District, United Kingdom

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This user joined on 06/21/2018.

Projects I Like & Follow

More sensitive to gamma radiation than a Geiger counter with the added bonus of telling exactly what's inside your samples!

All-In-One Gamma-Ray Spectrometer

A SCPI programmable precision resistor

Programmable Precision Resistor

Geoff Graham released an inexpensive video terminal design in 2014. Several others have updated the firmware. Here is an updated PC board.

ASCII Video Terminal

A minimal 6502 computer that can be programed machine language without PCs

6502 standalone computer

mitsuru-yamada Mitsuru Yamada

64-bit binary counter

God's clock

tauno-erik Tauno Erik

Like a HP-200LX but better - because 6502

ESP65 Pocket Computer: KIM-I/Apple-1/esp32

Graphics the hard way; life doesn't have to be this difficult !

VDM3, Vector Drawing Machine #3

mark-atherton Mark Atherton

Clock that chimes on the hours, halves, quarters

Chiming Clock

A 3D printed design of a Cyberdeck around a Raspberry pi3b and a self soldered planck keyboard.

Planck Cyberdeck

Nice big beefy 1950’s replica of Nixie clock inspired by old HP gear. Fun Fact: clock accepts 1pps input from atomic clock

Nixie clock 1950s cold war replica

marten-electric Marten Electric

A Geiger counter (radiation monitor and dosimeter) based on the popular soviet SBM-20 (СБМ-20) tube and ESP8266 microcontroller.

Geiger Counter using SBM-20 and ESP8266

omar-khorshid Omar Khorshid

A clock design with self-dimming LED display constructed using just 7400 logic ICs and no microcontrollers

A zero-software digital clock from scratch

erik-van-zijst Erik van Zijst

Easy way to upgrade your 80C32/8052AH-BASIC single-board computer into a VHDL based 8052AH-BASIC using a FPGA without a device programmer!

8052AH-BASIC single-board computer

Stepper-Driven, MIDI-Controlled, Tonewheel Robot made with laser cut sheet metal tonewheels and custom-wound pickups

Hammond-Inspired Tonewheel Organ Robot

A SciFi inspired PC Hardware Monitor

MAINFRAME COMPUTE OBSERVATOR

mangus-tiranus Mangus Tiranus

OCRd and typeset as html where possible. A work in progress.

Applix 1616 Documentation

This is a PROM module for my homemade computers PERSEUS-8 and PERSEUS-9 to load and replace multiple applications on CI-2 interpreter.

PROM module for my PERSEUS computer's application

mitsuru-yamada Mitsuru Yamada

XBM to LCD by USB - displaying XBM images and videos on a Nokia LCD or cheap OLED sent via USB to an ATmega328

usbxbm

sven-gregori Sven Gregori

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Bits

Mitsuru Yamada wrote 04/29/2023 at 15:01

Thank you for liking and following my #PROM module for my PERSEUS computer's application ! The memory capacity is almost meaningless today, but it was created with the intention of reproducing the state-of-the-art technology of 45 years ago.

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