#2096

[@Big-hg5zf]

Nice demo, but how about showing a S21 measurement with the ferrite bead? After all, that’s what you would use it for, not S11.

[@Big-hg5zf]

If you’re not keen on the S21 measurement, how about using that 14-bit Keysight scope and showing a frequency response plot using the ferrite bead as the DUT? At least that would be some test equipment pr0n. You could compare that to the MSO5000 doing the same. ;-)

[@SkyhawkSteve]

It's interesting to see the wide tolerances on ferrites. I used to use a Fair-rite 1206 ferrite for squashing some EMC issues in sensor designs. After some surprises where prototypes passed EMC, but the production samples didn't, I started watching the values of the individual ferrites in my kit. In marginal cases, I really had to make sure that the DUT passed with ferrites with the lowest impedance. The published tolerance on the ferrites was 25%, if memory serves.

[@fritzkinderhoffen2369]

Nice demonstration. Thanks.

[@SouravTechLabs]

1:00 - he's even making sound, just like a kid 🤪 It's always good to wake up your inner child 😂😂😂😂

[@subramanianr7206]

You are right. Initially, I thought it was the pen scratching on the paper. He enjoys what he has been doing, learns, and teaches everyone. He is a great teacher. De VU2RZA

[@IMSAIGuy]

being a grown-up is over rated

[@subramanianr7206]

@IMSAIGuy Yes, Einstein once said, he used to ask himself some questions like a small kid. Kids are very curious about asking questions. De VU2RZA

[@BJcanal270]

Thanks for sharing your knowledge. Happy new year!!

[@uni-byte]

Nice "EDA" there. I still have my Staedtler-Mars from 50 years ago.

[@TomSherwood-z5l]

Despite inflation we far from the time when a handful of beads could purchase a substantial piece of real estate.

[@0xde57]

where does one find that schematic trace guide plastic thingy? looks super handy.

[@IMSAIGuy]

www.pcbway.com/project/shareproject/Electrical_Symbol_Drafting_Stencil_c6796e28.html

[@0xde57]

@@IMSAIGuy thank!

[@ivolol]

Used a VNA, STILL managed not to measure it at 100Mhz 😅

[@byronwatkins2565]

(We like the VNA...)

[@jimomertz]

But…but…but….what was it at 100MHz? I tried to stop your screen and it was around 90 ohms at 90 some MHz. Not quite the 60 ohms as stated. Should have been 110 (50+60).

[@IMSAIGuy]

you are right, I should have stopped at 100, at 200 it was 125ohms. so it looks like the 60ohms is pretty good.

[@Frank_K4FMH]

Ok, link to your drawing template, please…I already bought a 4275a, lol

[@IMSAIGuy]

www.pcbway.com/project/shareproject/Electrical_Symbol_Drafting_Stencil_c6796e28.html

[@Jibs-HappyDesigns-990]

🍰☕🌜yup! that's how I'd done it as well !!🌞