testing IF cans and other radio coils, how to find out their properties скачать в хорошем качестве

testing IF cans and other radio coils, how to find out their properties

How to find out the properties from IF cans and other (canned or not) radio coils by connecting them to a FET oscillator. By an easy formula (frequency=1/root from LxC, L in Henry and C in Farad) you can calculate/find out all the properties:inductance, parallel capacitance (and parasitic capacitance at the oscillators input coming parallel to the well known capacitance). More important: where you can use the coil: VFO for SW, VFO for medium wave, HF input coil coil, Long wave VFO or input coil, etc. All by connecting them to a FET oscillator and study the lowest and the highest frequency where the coil can work. All the videos hat I have published on You Tube can be found via my Channel Trailer: Link is    • Radiofun232 on YouTube, find working & tes...   In thematic order you can find these video’s under the “comments” section. IMPORTANT: to find all the links to the (+/-700) video’s on my YT Channel, select, in the comments section, “NEWEST FIRST” My books about electronics are available via the website from “Lulu”, search for author “Ko Tilman” there. Link is https://www.lulu.com/shop/search.ep?k... My books are also available via Barnes and Noble and via Amazon. Regarding all my video’s: I constantly keep them actual, so the original video’s with the most recent information are always on YouTube. That is the source, and search there. When my video’s are reproduced or re-edited on other websites/channels you can not (!) be sure about the original content (=really working electronics) and important adaptations to the circuits. Be aware of that, I saw on the internet many of my circuits reproduced in a poor or even not proper way. I can not help that, sorry.