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83 projects
304
1
1
Ski Lift Status Map with LED Indication for Current Lift Operational Status White or Black PCB + Wood, Wifi connected & OTA Updates
Project Owner Contributor

Trail Map Live Lift Status Ski Map - Mammoth CA

kevin-briceKevin Brice

167
1
0
If opamps are super useful, RRIO opamps even more. .
Project Owner Contributor

DIY LM358 RRIO OpAmp

steve-schneppSteve Schnepp

1.3k
13
15
Can you hear the difference between Op Amp´s? Yes! With this headphone amplifier.
Project Owner Contributor

Listen to the Op Amp´s

stephan-martinStephan Martin

100
0
0
In this tutorial, I am going to show you guys how to design this "Transformers PCB Badge" and how to solder the components to it.
Project Owner Contributor

Transformers PCB BADGE

hulkHulk

1.8k
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

166
0
0
View your mountain bike ride's GPX elevation profile on a PC then play it back on a vintage aircraft altitude indicator!
Project Owner Contributor

Relive Your MTB Descents on an Aircraft Altimeter

glen-akinsGlen Akins

1.2k
5
10
An FPGA-based video input delay meter using a DVI output chip and an amplified photodiode light sensor
Project Owner Contributor

Video Input Delay Meter

mike-kibbelMike Kibbel

307
2
2
A basic demonstration of Op Amp as Differential Amplifier
Project Owner Contributor

RGB LED control with Op Amp and ADXL335

rudra-ladRudra Lad

923
5
3
DIY customizable 0.96'' display voltmeter, ammeter combo
Project Owner Contributor

Small OLED panel meter

marius-taciucMarius Taciuc

11
10
Two gene-protein interaction models were modeled using the saturating behavior of opamps to model the sigmoid concentration/rate curves.
Project Owner Contributor

Model nonlinear biochem reactions using opamps.

bruce-landBruce Land

5.4k
36
34
An ultra-low noise amplifier (named EmoeNAP) capable to measure low-noise LDO/OPA's wide band output noise, and many other applications
Project Owner Contributor

Take a 'NAP' and enjoy a moment of silence

floydfishFloydfish

185
3
3
Balanced Ternary Analog-to-Digital Converter (ADC)
Project Owner Contributor

Ternary ADC

shaosSHAOS

209
0
0
Akhiyon se jump maare! dino kamaal re ;)
Project Owner Contributor

EOG dino game controller

deepak-khatriDeepak Khatri

850
4
6
Precision op amps and analog best digital in speed, noise, simplicity, and ease of implementation.
Project Owner Contributor

Precision Op Amps and Analog best Digital

paulpaul

347
2
2
A custom Feather with SAM L21 microcontroller, paired with wings that let us interactively explore its integrated op amp peripheral.
Project Owner Contributor

Feather Op Amp Lab

joey-castillojoey castillo

1.7k
9
11
Last year, I found a 5FP7 CRT on ebay for $45. My first thought was "Wouldn't it be cool to build a RADAR scope?"
Project Owner Contributor

ADS-B on a real RADAR CRT

j-cJ C

726
6
8
Voltage is set with three BCD switches with a step of 10mV
Project Owner Contributor

Fully analog digitally controlled voltage source

klimaKlima

977
13
12
Another Operational Transconductance Amplifier - a humble attempt to provide a tolerant discrete design for a vital opamp type
Project Owner Contributor

AORTA

helgehelge

1.1k
548
3
Clean hack of the otherwise very solid ART DJ-Pre II phono preamp with the aim of improving the existing design and enhancing its features
Project Owner Contributor

Audio - Phono preamplifier boost

jovanJovan

3.6k
11
14
Rogowski coil current sensor using cheap shunt regulators as opamps.
Project Owner Contributor

TL431 rogowski coil current sensor

stephenStephen

3.1k
2.1k
41
This module is based on esp32, uses arduino for programming, and the firmware is open source. It realizes the core functions of wifi transfe
Project Owner Contributor

Wifi Module For 3D Printer(ESP32)

fiberpunkFiberpunk

271
339
2
Fast Compressor built with minimal components
Project Owner Contributor

Dirty Dan Compressor

john-wetzelJohn Wetzel

260
1
1
Video game logic made from analog circuit. Activate power at the right time in to hit your opponent and win.
Project Owner Contributor

Analog Circuit Game - Switched Tag

pablo-antonio-camacho-jrPablo Antonio Camacho Jr.

193
2
2
Real world DC logic signal conversion to common microprocessor levels.
Project Owner Contributor

DC Input Protector - Level Shifter

dougDoug

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