LEAP#329 On DC Power Connectors
How many types of power connector is there? In addition to just two bits of wire twisted together, it is pretty much an uncountable selection!
Just some notes on the main types, including bypass configurations.
As always, all notes are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#328 555 Timer VCO
The control terminal of the 555 timer can be used to adjust the upper and lower thresholds with an applied voltage.
This produces a very simple voltage-controlled oscillator.
The few measurements I’ve taken show that control adjustments have as much impact on duty cycle as frequency.
That may be what you want … or not!
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#327 Diode Ring Mixer
A DIY build of a double-balanced diode ring frequency mixer, inspired by another
video from w2aew
and the endless treasure-trove that is Experimental Methods in RF Design.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#325 Pimp My Boldport Club Spoolt
Building the latest Boldport Club project - “spoolt”, a solder dispenser. It actually works and now has a place on my workbench. It’s also a nice reminder and inspiration to consider how PCBs can be used as a structural element in design. Of course one essential feature it was missing was LEDs - so I’ve added those myself;-) As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub Here’s a quick demo:
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