Correction to the video: the schematic is OK and leading, the mixer transistor is a PNP (!) transistor (BC557) The VFO signal is mixed into the COLLECTOR (and IF transformer) from the BD 557 (mixer), so not in the emitter.
Description from a very basic Superhet SW radio for 2-10 MHz.
The book is published on the Lulu website, author Ko Tilman.
Very simple superheterodyne 2-10 MC radio links to all the videos that were published on You Tube and show everything to know, how to make this superhet SW Radio.
• Very simple superheterodyne SW (2-10 ...
part 6 kind of overview
• Very simple superheterodyne SW radio ...
part 5 reception results
• Very simple superheterodyne SW radio ...
part 4 the local oscillator/VFO
• Very simple superheterodyne SW radio ...
part 3 how to adjust the IF frequency on 455 KC
• Very simple SW superheterodyne radio ...
PART 2 THE SCHEMATIC (2-10 MC SW RADIO)
• Very simple SW superheterodyne radio ...
PART 1 DEMO OF THE CIRCUIT
All the videos hat I have published on You Tube can be found via my Channel Trailer: Link is
• Radiofun232 on YouTube. Updated month...
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. Update 8 April 2022.