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jc2048 Blog Index

jc2048

Electronic Art

 

9 Pieces of Pi: Slice 1: The Long Way Round

9 Pieces of Pi: Slice 2: Manifesto for Art Electronic

9 Pieces of Pi: Slice 3: Trickle Down to the Brave New World (This Way!)

9 Pieces of Pi: Slice 4: Fast Forward

 

micro:bit

 

The micro:bit Quartet


PWM [micro:bit]
Light Seeking Light Doth Light of Light Beguile [micro:bit]
IO, IO, it's off to work we go! [micro:bit].

 

Arduino

 

Cool LED Displays: Boost That LED!

UNO, Blue Man and the Neon Light

 

A Simple Arduino Music Box
Simple Arduino Music Box: Voices
Simple Arduino Music Box: Chords
Simple Arduino Music Box: Envelopes
Simple Arduino Music Box: Chimes

 

Arduino: R-2R Experiment
Arduino: R-2R: Sine On You Crazy Diamond
Arduino: R-2R: Buffer, Attenuate, and Filter
Arduino: R-2R: "We Interrupt This Programme..."
Arduino: R-2R: "Resistance is..."?
Arduino: R-2R: Setting the Output Frequency
Arduino: R-2R; "A Sweep is as Lucky, as Lucky Can Be..."

 

DIY Test Equipment: The Di-o-Matic, a Simple Diode Tester [Arduino]

Simple NANO Battery Tester Prototype

 

JFETs

 

Plotting the Transfer Characteristic of a JFET

Plotting the Output Characteristics of a JFET

JFET Colpitts Oscillator

Experimenting with a Cascode Switch

 

MOSFETs

 

Experimenting with MOSFETS: Total Gate Charge

Experimenting with MOSFETs: Transfer Characteristic

Experimenting with MOSFETS: Threshold Voltage

Experimenting with MOSFETs: Output Characteristics

 

Transistors (BJT)

 

Transistors: The Transistor as a Switch
Transistors: Vce Breakdown
Transistors: Switching a Relay Coil
Transistors: The Schmitt Trigger
Transistors: Vbe Reverse Breakdown
Transistors: the Transistor as a Diode
Transistors: Current Gain (Beta or hFE)
Transistors: Output Characteristic Curves

Transistors: Saturation

Transistors: Saturation Part 2 and Inverse Mode

Transistors: Some Very Old Ones
Transistors: The Ho Serial Astable
Transistors: The Astable Multivibrator (Featuring SuperLEDman).
Uni-Tunes
The Ramp-O-Tron
Transistors: Phase-Shift Sine Wave Oscillator
Mr Moog's Fabulous Filter

Experimenting with a Simple Wideband Transistor Amplifier

 

A Transistor Load

 

A Transistor Load

A Transistor Load: How it Works

A Transistor Load: Stability

A Transistor Load: Stability Part 2

 

LEDs

 

Experimenting With Using an LED as a Light Sensor

More on Using an LED as a Light Sensor

LED Speed: Experimenting With a One-Transistor Current Source

 

555 Timer

 

555cc

 

Op Amps

 

Op Amps: Simulating a Two-Phase Oscillator
Op Amps - The Norton CDA

Op Amps: NIC (Negative Impedance Converter) and the Chua Oscillator

Experimenting with Op Amps: Input Offset Voltage

 

Voltage Regulators

 

TL431 Oscillator

Experimenting with Old Voltage Regulators: Output Resistance (and other Stuff)

 

Noise

 

The Art of Noise

Noise: Transistor Preamp 3

 

Programmable Logic (FPGA, CPLD, etc)

 

 

CPLD Egg Timer

 

Booards and Boojums: Lattice XP2 Brevia2 Board: Part 1
Booards and Boojums: Lattice XP2 Brevia2 Board: Part 2: Count Those LEDs!

 

FPGA: Making Waves

FPGA: Waves 2: Simple Sinewave

FPGA: Waves 3: Computed Sinewave Oscillators

FPGA: Waves: 4 Tinker, Taylor, Soldier, Sine

FPGA: Waves: 5 CORDIC Sine

FPGA: Waves 6: Reconstruction Filter

FPGA: Waves 7: Random Sequence Generator

FPGA: Waves 8: Fast CORDIC Sine and Cosine

 

CMOS Crystal Oscillator

 

VIDOR 4000: Johnson Counter

VIDOR 4000: Clock Jitter

VIDOR 4000: Servo Interface

 

Passive Components

 

Capacitor Leakage Experiments

Decoupling Capacitor Experiments

 

Miscellaneous

 

The Gold of the Fool and the Whiskers of the Cat
Solar Garden Light
DIY Test Equipment: The ByEar 2000 - A Logic Probe
Boost That Power, Man!

Chaos

Bauble

Exterminate! Experimenting with an SA602A

 

Programmable Load (blogs looking at the way Jan and Peter's load behaves)

 

Programmable Load Build

 

Programmable Electronic Load: Dynamic Behaviour: Part 1 Overview
Programmable Electronic Load: Dynamic Behaviour: Part 2 The Servo Loop
Programmable Electronic Load: Dynamic Behaviour: Part 3 Effect of Output Inductance
Programmable Electronic Load: Dynamic Behaviour: Part 4 Effect of Output Voltage Change
Programmable Electronic Load: Dynamic Behaviour: Part 5 Stability

 

TPS54A20EVM Evaluation

 

TPS54A20EVM evaluation - part 1
TPS54A20EVM evaluation - part 2
TPS54A20EVM evaluation - part 3
TPS54A20EVM evaluation - part 4
TPS54A20EVM evaluation - part 5

 

Raspberry Pi

 

Experimenting with a Raspberry Pi GPIO Pin

Experimenting With a Raspberry Pi Driven Transmission Line

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