Can tape heads (read: erase heads) of tape-videorecorders and tape-audiorecorders be used as oscillator coils? Yes, they can and they are very usable because of their high quality factor. They can work in the 100 KHz up to 1 MHz range. I assume with a ceramic parallel capacitor you can tune them to a very precise frequency between 150 KHZ and 1 MHz.
The video shows how to test them & their qualities as an oscillator coil. In general: a very good and stable high peak oscillation is generated, due to their high Q. Much more info in the video.
Schematic of the test oscillator that I used in this video is here
Schematics & video links of how to make an old school tape recorder are here:
final overview
There are 5 video’s, by the way, but these four show most things.
These tape recorder schematics + precise descriptions/electronic schematics & circuits are also in my book “Schematics 2, audio amplifiers and loudspeaker boxes”, author Ko Tilman, Issued via the LULU website, link is in this textbox. Page 109-119.
You can buy that book via LULU and Amazon.
Many other (radio) oscillator circuits between 30 KHz and 15 MHz are on my YT Channel.
All the videos hat I have published on You Tube can be found via my Channel Trailer: Link is
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.
There is an important video via which you can buy a document where I give links to many of my video’s, published between 2010 and 2018.
Link is:
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 with real properties for a purpose) and important adaptations to the circuits.
Be aware of that, I saw on the internet my circuits reproduced in a poor or not proper way.
I also found that people probably republish my circuits under phantasy names and/or with phantasy properties. Sometimes they want to find gold with them. I take distance from all these fake claims; I cannot help that it happens, sorry. Upload 25 november 2019.
0 Comments