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Lately the Vitavox electromagnet project looks like moved to a fruitful direction. Well, I do not know if the direction would be a real fertile but it will be going somewhere instead of talking… that is always fruitful. I have quite good support form anyone with whom I referred with inquiries regarding my Vitavox fieldcoil projects. The good part is that no one knows anything defiantly and everyone very much would like to see what the final observation and conclusions regarding the fieldcoil benefits I will be. So, do I….

Below are the images illustrating how it will work at the first test-stage.

The first phase of the experiment would be an introduction of a filedcoil around a partially demagnetized permanent Alnico magnet and running them together, Then it will be a filedcoil around a normal metal none-magnetized core. The only unknown issue is that the DCR of the fieldcoil might be preferable. I will drive the coil with current, this is given. Initially I was planning to stay with sub 50V I order to use some large  “transistor” filtering caps that I have in my storage. However, I afraid that I would lead to too small gauge of winding. Theoretically it would be possible to stat with low voltage… but that all depands … how to power the fieldcoil.

The powering of the fieldcoil is important and I remember that when I played with my fieldcoils it was quite affective, still they where full range drivers not the compression drivers. A common sense suggests that supply should be completely ripples-free and as close to DC as possible. It is not a big deal to make a 12-14V fieldcoil and buffer it with 5-7 Farades automobile capacitors. Still, how this “common sense” would relate to Sound I clearly have no idea. Besides, the hoodlims who foolishly adore the Telefunkens and Klangfilms from 30s do not know that they had up 5V ripples in their fieldcoils… Anyhow....in my care it will be obviously LCRC chain but the size of the last cap is the subject of the target voltage/current. Any idea or proposal how to power a fieldcoil and how it “might” affect sound?

Rgs,
Romy the Cat

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