Mastodawn

Art for Adults Feb 5, 2025

Welcome to #VintageWednesday!

Today's artist: Édouard Alexandre Sain | https://en.wikipedia.org/wiki/%C3%89douard_Sain

#nsfw #art #artforadults #afa #afaÉdouardAlexandreSain

A nice piece of analog technology.

Rescued from a local grocery shop. 😍

#Scale #GroceryShopping
#Vintage #VintageWednesday
#Photography #ADE
#Hamburg

Søren Kjærsgaard Mar 6, 2024

It’s #waveformwednesday, let’s make it #vintagewednesday as well 👴🏻😃

I’m assembling a small low pass filter and I want to sweep it from 100Hz to 10kHz. Let’s do it the old fashioned way ☺️

Before modern oscilloscopes with BodePlot options became available for everyone, a common and quick way to sweep a circuits frequency response, was to connect an external sweep generator and look at the resulting curve on the screen.

Using the #CuteGen™️ I’m sweeping logarithmic from 100Hz to 10kHz. I’m using the generator trigger output as trigger on channel 2 and the X-axis is adjusted to be exactly one period, i.e. 100-10KHz.

The filter response can clearly be seen 🙂

This method still has its justification. Not everyone has fancy scopes and even if they have, it’s still a smart and fast way to quickly observe a frequency response. Show me any fancy scope updating a bode plot every 100ms 👌🏻🙂

#testandmeasurement #hamr #hamradio #rfengineering #rfengineer #electronics #electronicsengineering