| Is it considered cheating when you make an electronic oscillator that needs light to work? Is it a paradox when this oscillator only works i...
More about Circuit Special 2023 files (30)
| A microphone is a sensitive device producing a weak output signal that must be processed with care. This preamplifier does just that. It eve...
| A symmetric or balanced connection provides a good way to transport audio signals over longer distances. The circuit described below convert...
| Dynamic compression of audio signals is essential for reducing signal peaks to avoid saturation of the output signal. This circuit uses a li...
| Switching audio signals remotely can be done with relays, but these are clunky and power-hungry. Here is a solution that uses solid-state sw...
| There are all sorts of tiny keyboards, pianos and organs based on NE555-type oscillators, Arduino boards, and microcontrollers such as the A...
| It’s hot outside (or inside), and you need a cool breeze? With this fan controller, you can control a fan’s airflow manually or let the devi...
| Need a regulated voltage out of an AA(A) solar-charged battery? Then, this tiny boost converter might just be what you’re looking for.
| Locks come in many types — not just mechanical, but also electronic. Various mechanisms to open electronic locks have been devised, such as...
| Build a customizable Morse code transmitter project using a tiny microcontroller. Send preprogrammed messages while adjusting speed and pitc...