LEAP#371 common emitter amplifier biasing
I am inspired once again by one of w2aew’s excellent vidoes, this time to revisit the operating classes and biasing design rules of the common-emitter amplifier.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#370 TS3A5018 Digital Switch
Just a quick test of the TS3A5018 digital switch which I am looking at for an application in switching amplifier gain stages.
The TS3A5018 is a 1.8 to 3.6V device with four SPDT switches controlled from a single input, and a master active-low enable pin. It is guaranteed break-before-make (max 58ns).
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#369 my beeping Boldport ananas
Boldport Club Project #20 is the first designed by Ben, the new Boldporter. And it’s a beauty!
As is often the case, a small but interesting circuit is at the core of a beautiful design. The circuit is essentially four repetitions of an RC phase-shift oscillator. Like other projects such as the famous Cordwood series, the design employs multi-board symmetry and 3D construction.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
Here’s a quick demo (with special customisation!):
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LEAP#368 Granular Synth
The “Granular Synth” idea harks back to an old Auduino project. I stumbled upon it again recently and decided it deserved a quick build in an Altoids tin ..
.. because granular synthesis is a basically how they make Altoids, right?
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
If you can put up with 5 minutes of me fiddling around, here’s a taste of how it performs..
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