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spudfishScott

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Cambridge, MA & Lampasas, TX
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6 Followers
19 Following
2 Projects
82 Likes
spudfishscott
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This user joined on 09/23/2018.

10.2k
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I am building a computer featuring a 16-bit RISC CPU made of discrete transistors for learning, fun and art. It will be pretty large.
Project Owner Contributor

The Spikeputor

spudfishscottspudfishScott

726
786
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An Apple ][ I/O card to control up to four SPI peripherals without the need for bit banging.
Project Owner Contributor

SPI Controller Card for the Apple ][

spudfishscottspudfishScott

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a clock which rewrites time again and again
Project Owner Contributor

Sequino

ekaggrat-singh-kalsiekaggrat singh kalsi

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A 16 bit RISC computer with video display, from just a few TTL and memory chips. Online C compiler and simulator available.
Project Owner Contributor

Kobold K2 - RISC TTL Computer

roelhroelh

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A 16-bit (and a 32bit) FPGA CPU I call Lion CPU and a computer, the Lion computer. Everything built from scratch.
Project Owner Contributor

Lion FPGA CPU/Computer

leonLeon

12.4k
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A home-brew 8 bit Microprocessor built on a breadboard 64K Address Space, IRQ, and DMA 16 Bit Stack Pointer, 4 8 bit Registers or 2 16 bit
Project Owner Contributor

8 Bit Breadboard CPU

2-zons2-Zons

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A 16 bit computer with 20 address bits and video display, from just a few TTL and memory chips. Instructions resemble 68000 / PDP-11.
Project Owner Contributor

Kobold - retro TTL computer

roelhroelh

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This projects tracks my efforts to develop discrete LED-Transistor logic building blocks and designing a CPU from them.
Project Owner Contributor

LCPU - A CPU in LED-Transistor-Logic (LTL)

timTim

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A clock controlled by a ESP8266, which shows the time and functions as a stopwatch.
Project Owner Contributor

Big 7 segment display

guilleGuille

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A modern replacement for the TI-58/59 Calculator BP1
Project Owner Contributor

TI-59 LiPo Battery Pack

tomcircuittomcircuit

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Adding four SPI ports and up to 128K of banked RAM using nothing more than 4 TTL chips and some wizardry.
Project Owner Contributor

Gigatron I/O and RAM expander

marcel-van-kervinckMarcel van Kervinck

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A breadboard friendly 4-bit full hex decode board based on GAL16V8 chip.
Project Owner Contributor

4-Bit Full Hex Decoder

daves-dev-labDave's Dev Lab

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Only 2 relays and a few diodes, but 10 functions including ADD and Shift Right. Simplest relay ALU ever designed ?
Project Owner Contributor

Simple Relay ALU

roelhroelh

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Safe and convenient power for HP 35/45/55/67 Calculators
Project Owner Contributor

Classic HP Calculator LiPo Battery Pack

tomcircuittomcircuit

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Prototyping some processor functions using logical gates made of discrete transistors, resistors and diodes
Project Owner Contributor

Simple ALU from discrete components

pavelPavel

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A modern MCU-based hardware replacement for the venerable TMC1501 used in the Texas Instruments TI-57 LED calculator.
Project Owner Contributor

TI-57 Programmable Calculator Hardware Retrofit

tomcircuittomcircuit

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My attempt at a non-destructive LiPo retrofit for the unique-yet-somewhat-loathed HP 28S calculator
Project Owner Contributor

HP 28S LiPo Battery

tomcircuittomcircuit

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A 1960s-style mini (decreasingly) reminiscent of the PDP-8 scratch-built out of 74xxx logic, including software.
Project Owner Contributor

CFT 16-bit Mini-Computer

alexios-cAlexios C

1.3k
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This clock has no microcontroller, but a TTL CPU built on 1 square inch
Project Owner Contributor

Clock driven by small homebrew CPU

roelhroelh

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Yep, another one! But this time with more modern devices, fewer parts, and a smaller form-factor
Project Owner Contributor

HD6309 Singleboard Computer II

tomcircuittomcircuit

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roelh wrote 01/19/2020 at 17:20 • point

Hi Spudfish, thanks for being the first one to like my CLOCK !

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Guille wrote 04/24/2019 at 21:19 • point

Hello, thanks for the like of my project!

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roelh wrote 04/12/2019 at 07:17 • point

Hi Spudfish, thanks for following and liking #Kobold retro TTL computer !

  Are you sure? yes | no

Dusan Petrovic wrote 03/12/2019 at 14:38 • point

Hi @spudfishScott, thank you for following my #Homebrew CPU list!

  Are you sure? yes | no

roelh wrote 02/03/2019 at 09:05 • point

Hello Spudfish, thank you for liking #Simple Relay ALU !

  Are you sure? yes | no

roelh wrote 12/15/2018 at 19:03 • point

Hi Spudfish, thanks for following and liking #RISC Relay CPU !

  Are you sure? yes | no

roelh wrote 12/14/2018 at 20:23 • point

Hi Scott, thanks for following me !

  Are you sure? yes | no

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