Transformer polarity test / how to find it / and how to test a transformer with DMM & oscilloscope

[@carlgradolph9676]

Thanks for this information. Very helpful. I have a box of salvaged transformers with no labels; this knowledge will allow me to safely test them.

[@sunupradanaX]

I like how the sound of your voice centered in, from my headphone 🙂. The explanation is indeed very good. Thanks.

[@garrygemmell5676]

Great stuff I have learned a lot today - good day when you learn something new!

[@aaronregan5061]

Wow wow wow wow🎉 thank you so much what a cool idea I had no idea I am learning so much❤!!!!!! Aaron!!!

[@randydicotti3975]

Hello Bob, Should most transformers from SMPS and small DC to AC inverters react this way when near a powered AC transformer? I have one that does not seem to.

[@miguelduran1140]

Hola Bob, como siempre espero la versión en español. Gracias y saludos cordiales desde Michoacán México.

[@rmariu]

Great video. Thank you. Really helpful for a beginner like me.

[@juanchizabaleta2405]

Muy buen video Bob,donde nos muestras el efecto de la inductancia usando el osciloscopio apoyado con tu generador de señal;felicitaciones por tu laboratorio y lo que compartes con nosotros.

[@davidfalconer8913]

One very safe way to test is to put a Tungsten filament mains bulb in series with the input .... should you connect the mains to a 6 Volt winding ... the bulb will safely light up avoiding damage ( tried - n - tested ) ..... DAVE™🛑

[@ramseyfernando3420]

thanks sir

[@eleman-gc]

big thanks!

[@practicallab]

godd explanation

[@ronabalosneo]

Did you say “magic tool” 🤪👍

[@bob.kalpon1398]

Yep! Just think about it: With a pen, pencil or marker, we can create anything in paper, and later convert it real. ...but everything starts and is possible to create with a "magic tool". ;-)