The fundamental RC circuit ☺️
The starting point for many electronics tinkerers, moving onwards from simple DC designs. Found within the first couple chapters of any electronics textbook.

As simple as it may look, there’s surprisingly much to be said and understood about this circuit.

People will say “it’s a low pass filter” (or high pass)”, but how does it actually work, why does it act as a filter?

To understand its frequency behavior, you need to look at it in the time domain.
Two simple components, a square wave signal and any oscilloscope will keep you entertained all night 😃👍🏼

Last week I found myself busy a couple hours at the whiteboard at the local #hamradio club, explaining a lot of this.
Tuesday night, we’ll set up measurements at the bench demonstrating last week’s calculations, it’ll be fun 🙂🙂

#electronicsengineering #electronics #retro #engineer #hamr #testandmeasurement #siglent #rohdeschwarz #circuitdesign

Inspired by a Twitter dialogue, let’s launch some daily #electronics tags to be used freely 👍🏼🤓

Today is #waveformwednesday and here’s how my mains grid looks - not quite a sine but that’s to be expected.

Don’t ever, EVER, connect your scope input directly to mains - use a high voltage differential probe or a transformer, as shown here.

I’m using the #quicktest switch, it’s a really handy way to control power to a circuit. It’s of British origin and comes with a standard 13A BS1362 fuse. I found that a bit high for my purposes, so I replaced it with a 5A, significantly limiting the available energy in case of a fault situation. Safety first always applies at the bench 👍🏼⚡️☝🏻

So go ahead, use these tags freely, be inspired and show us your experiments 👌🏻🙂

#electronics #rohdeschwarz #micsig #electronicsengineering #engineer #hamradio #measurementmonday #testgeartuesday #waveformwednesday #teardownthursday #frequencyfriday #signalsaturday #sensorsunday