SolderSmoke Daily News

Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com

Showing posts with label Toroids. Show all posts

Showing posts with label Toroids. Show all posts

Tuesday, August 19, 2025

Coil-Making in Japan -- Manual and Automatic

I found this video sort of soothing. I liked the manual process, but the automatic process is amazing too. Thanks to Rogier PA1ZZ for se...

Saturday, March 25, 2023

Update on the High-School Direct Conversion Receiver Project: Board #4 Completed

One of the receivers. (l to r) AF, PTO, Mixer, BP filter The students continue to make great progress on their direct conversion receivers. ...

Thursday, August 11, 2022

What Coil for the Polyakov Input Circuit? How to calculate a coil value for resonance.

So, what is the value for L1 and L2? What coil should I use? Michael AG5VG had that question. And so did I when I built this receiver....

Tuesday, August 24, 2021

Mythbuster Video #17 Boxing it Up, Tuning Filters, Tapping a Heat Sink, QRO Dreams....

I made a cabinet out of scrap packing material. I show how I tune LC filters by squeezing the turns on toroidal inductors. I tap a heatsi...

Monday, April 10, 2017

Very Useful Toroid Info Web Site

This site provides the kind of info we need when working with toroids. It even tells you the length of wire to cut. It links to the W8DI...

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