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Projects Keri Szafir likes and follows

8.8k
653
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A different approach for a solar tracker, alternative movements, to be installed on the outside, to optimize the efficiency of solar panels
Project Owner Contributor

mysoltrk - a solar tracker, reinvented

my-solar-trackerMy Solar Tracker

3k
33
38
New developments in planetary position calculation applications and external PROM modules for PERSEUS-9.
Project Owner Contributor

PERSEUS-9 2023 Update

mitsuru-yamadaMitsuru Yamada

1.9k
32
40
My not so fancy example of Magnetic Core Memory using fairly cheap cores and free parts from my junk box.
Project Owner Contributor

Magnetic Core Memory The Dr Cockroach Way

dr-cockroachDr. Cockroach

4k
28
18
This is the oldest PCB in my collection, acquired from a scrap sale at an old NASA test stand. What did it do?
Project Owner Contributor

Reverse Engineering an Apollo-Era Circuit Card

skyhawksonSkyhawkson

3.3k
19
27
A smart cat bowl that uses facial recognition
Project Owner Contributor

Cat Bowl Monitor

joe-mattioniJoe Mattioni

6k
16
18
This is a 1/60 scale model of the Saturn V and Launcher - Umbilical Tower. This model is huge! I have been working on it for two years.
Project Owner Contributor

Apollo Saturn V and LUT

wglasfordwglasford

1.3k
13
17
An 8 line by 3 trunk telephone exchange
Project Owner Contributor

Mockingbird Telephone Exchange

stevesteve

2.6k
12
15
Finally!
Project Owner Contributor

3D Printed Selectric Typeballs

sam-ettingerSam Ettinger

1.8k
12
16
Measure audio levels with a retro analog VU meter driver!
Project Owner Contributor

VU Meter Deck

szymon-bartosikSzymon Bartosik

1.2k
10
12
Just doing some restoration on vintage synthesizers
Project Owner Contributor

Synth Restoration

quinnQuinn

1.6k
10
10
A vacuum tube computer without semiconductors, 4-bit Von Neumann, 4096 words core memory, graphics output
Project Owner Contributor

GLASNOST Vacuum Tube Computer

paul-kocylaPaul Kocyla

1.3k
9
11
Intel 4004 single board computer running calculator program, VTL interpreter, 8080 emulator, and so on
Project Owner Contributor

Intel 4004 Homebrew Computer

ryo-mukaiRyo Mukai

662
9
10
My entry to the 2024 business card contest, a big-muff guitar pedal in a business card form factor !
Project Owner Contributor

Party in the front, business in the back

chloe-chateauChloe CHATEAU

2k
8
6
This is a tube amp build using only the 5V supply of a USB connector.
Project Owner Contributor

Battery tube amp using only 5V USB power

jgJ.G.

1.3k
5
5
This article presents an actual operation and internal circuitry of my own Digital Sampler in 1979.
Project Owner Contributor

Homebrew Digital Sampler in 1979

mitsuru-yamadaMitsuru Yamada

979
5
5
Recycled LEDs improve my Clock
Project Owner Contributor

Update to an Ancient Electronic Display

david-christiansonDavid Christianson

405
4
3
Utilizing a low cost electrophoresis high voltage supply and DMMs to test a rare Powertube for use in Fluke regulated power supplies.
Project Owner Contributor

Simple Vacuum Tube Tester

collin-matthewsCollin Matthews

292
3
5
An Arduino compatible board for Polish Makers
Project Owner Contributor

Polduino UNO

szymorszymor

347
3
4
This is a Mashup of a 1903 and a 1988 typewriters. They become my version of a Teletype and Steampunk printer.
Project Owner Contributor

Victorian Teletype

daniel-rossDaniel Ross

609
2
2
My long journey to understanding the architecture and fixing what ended up being a trivial resistor failure.
Project Owner Contributor

Fixing a Fluke 412b High Voltage Supply

collin-matthewsCollin Matthews

56
1
2
A dynamic LED fox mask
Project Owner Contributor

Vulpine Visage

sky-guidedsky-guided

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