| The alarm clock (radio) has seen two significant improvements since its invention. The first is the snooze button, and the second we present...
Eric Bogers (288)
| Practically any amateur musician will be familiar with the old-fashioned mechanical metronome and its nice ‘double tick’ sound. Here were pr...
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| Back in July 2019, Elektor hosted a competition on the Labs website in order to find out who has the nicest/unattractive/interesting/most cu...
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| There are some hobbies that never require calculation - those who work with paint and brush don't first have to work out how green the grass...
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| In the November & December 2019 issue we described an extremely luxurious soft-start circuit, designed specifically for (big) audio amplifie...
| Long ago, before semiconductors became run-of-the-mill, a small neon lamp and a capacitor were used to generate a sawtooth…
| In the second episode of this series we described and energy-efficient relay with a few interesting characteristics. Here the authors elabor...
| Have you ever wondered what an infrared remote control sounds like? With this small circuit you will be able to find out!
| Legions of dog whistles are available from pet shops and by mail order. But with only a few parts you can easily build one that yourself!
| After the previous episodes about (ancient) radio techniques, we now return to a very house and garden, or more specifically, kitchen circui...