When planning pays off.
Curing a known disease and a little bit more.
Retro adventures with a Dual HS135.
What’s that smell?
Mysteriouser and mysteriouser.
Another change in plans.
Doing things people say you can’t do.
Sometimes you have to look twice to see how beautiful something is.
Just passing through.
A special machine that’s a product of its times.
Just screwing around a bit.
Virtually releasing the magic smoke.
Works about as well as could be hoped for.
When things don’t work like they ought to.
Almost - but not quite - entirely like threading other machines.
A failure and a new plan.
A sewing machine motor speed control - A pulse width modulation driver with PID as a motor speed control
A sewing machine motor speed control - A pulse width modulation driver with feedback as a motor speed control
Moving forwards again.
A sewing machine motor speed control - A simple pulse width modulation driver as a motor speed control
One step forward and one step back.
Better, but far from good.
Simple but not really useful.
Replacing simple mechanics with electricity and electronics.
Ideas for taming my Adler.
Thread tension from scratch.
A lot simpler than it looks - but still complicated enough.
It’s the little things that make life difficult.
Get it right the first time.
Really glad I did something I wasn’t planning to do.
Reassembling a family heirloom.
A first look at the Pfaff 31 and its cabinet.
A leather phone holster for my Motorola G8 Android smartphone.
When the zig-zag only zags.
Not like new, but at least functional.
Connecting two Android phones for fun and profit.
An embarrassment of riches.
Easier than you might think.
Lots of woodworking.
Cooler than its modern counterpart - and more practical.
Red crayons for better legibility.
Swiss cheese - or a block of hole-y steel.
A bunch of electrometers on the wrong hat.
I feel the need — the need for speed!
A bunch of electrometers in need of a hat.
Correcting a mistake - an update for Rodriguez.
Simple is where it’s at.
A quick fix.
Shiny and black is hard to photograph.
In a word - filthy.
The eagle has landed.
Bringing the Granada into the twenty first century.
Some instructions and wiring diagrams to make things easier.
GitHub to the rescue.
Under-engineered and over-built - but the price is right.
A CTIA four pole plug and a few spare parts.
Everything it takes to replace a broken Android headset plug (4 pole CTIA.)
Not the cheapest way but certainly a reproducible way.
Making sure that Live Transcribe can hear properly.
Electrically functional, but not quite ready for prime time.
It ain’t rocket science, but it ain’t trivial, either.
An aid for the hard of hearing.
Getting a grip on a wood burning stove.
Django + MQTT = Easy.
I’ve got this thing about old equipment.
Assembling a few modules.
Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 4
Three time’s a charm.
Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 3
Revising Rodriguez’s base current measurements.
Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 2
Lets take a “do over” on that biasing.
Designing a common emitter amplifier with Rodriguez.
That’s got the inductors covered, but what about the capacitors?
Oversampling by any other name is just as slow.
A functional tracer with revised hardware and software.
A miniature, gold plated electrometer.
A special request.
Forget the ‘gators, I was supposed to be doing something else.
Just doing some math and writing a bunch of numbers to a file.
Just do the easy stuff in the Arduino.
The Electrical Engineering StackExchange strikes again.
I’m not much on the smell of rotten eggs.
Ohm’s law doesn’t require a current shunt.
Building an IV plotter from an Arduino Nano - Generating the bias voltage with stone knives and bearskins
Use what you’ve got.
When I’m right, I’m right.
Making a point the hard way.
Flashing lights are for the disco, not the dining room.
At least, the manufacturer wouldn’t see it that way.
Clean is good, but it doesn’t do much for bad capacitors.
What’s wrong, and how hard is this going to be?
Refreshing my wife’s childhood memories.
More math and a little more software.
Pretending I don’t have a room full of tools and equipment.
Undoing things that were never meant to come undone.
A program doing mostly what computers do best - math.
A first (successful) experiment with GNU-Radio.
All about my experiments with GNU Radio.
What am I doing here, anyhow?
A garden from the inside out - first the servers, then the yard work.
A list of all my posts on monitoring soil moisture in a flower garden.
How much is enough, and how do you know?
I don’t need this, but I did it anyway.
Making use of long sweep times.
Re-modulating the subflexive fasarta.
A crooked base for a crooked salt block.
Making my posts more visible on search.
That ain’t fair, there’s twos of you there.
What kind of solder is best?
The hardware store cheapy left me hanging.
All my posts about my Telequipment D43 analog oscilloscope in one spot.
What to do when your D43 explodes.
All about the “Art Attack” LED voltage booster project.
Preparing the salt block for mounting and lighting.
All my posts on the salt block lamp.
When cheap crap breaks and ordering a replacement will take too long.
They ain’t pokemons - you can’t get ‘em all.
All about my experiments in photographing the invisible.
All my voltage multiplier experiments listed in one place.
Any SMD IC that has pins or pads that you can see, you can solder.
Anything you can see, you can remove.
Anything you can see, you can solder.
Making good use of a cheap tool.
Not the way most folks expect.
Some of the most common things you’ll solder.
Finally getting somewhere.
Things are finally heating up.
Make a habit of it.
Just a few things you’ll use up.
It really doesn’t take that much.
You’ve got to get close to your work.
You can’t solder what you can’t see.
All the steps it takes to master your soldering iron.
Learn a basic skill for your electronics hobby.
When you absolutely positively have to convince your wife that you’ve lost your marbles.
Ten, because two is a stupid number.
Making better use of the D43 software.
A backstop for partiers.
A work in progress.
An Arduino program as firmware.
Not the hardware store stuff, but the electronics.
Hardware store stuff - not the electronics.
Is this even worth trying?
A slight change in plans.
Inspired to follow a childhood dream.
Whiling away a rainy Sunday afternoon with a block of salt and an LED.
That was easier than expected.
Visualizing the invisible with a child’s toy.
Ulterior motives revealed.
“Missed it by that much.” - Maxwell Smart
Time to get abstract.
Electronics - “Art Attack” style.
That got complicated real quick.
Where did my voltage go?
Haven’t we met before?
Why do something that looks like a problem?
The big league.
Start with the simple things.
Let’s talk about voltage multipliers.
Making your own tools.
Hardware for the software.
New tricks for old dogs.
The trials and tribulations of carrying out a “trivial” task.
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