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Haralanov,

I spoke with a guy who consulted me during my Electo-Vitavox project. He helped me with selection of core material, deliberated the core and calculated the right coil to keep the core mass optimally magnetized. He has over 40 experiences to deal with all of it, so I pretty trust his expertise. He read your posts and I asked him if what you report has any justification. He was supervised with my question as according to him what you report is very self-evident. He insisted that higher voltage will substantially fasten rise time and will make VC to react much faster. I asked him why his did not tell me about it before and he replied: “You did not ask”.

Well, if so then you, Haralanov, have “discovered” a cool way to cure those always inappropriately soft-sounding to my taste electromagnet drivers. Most of the electromagnets that I have seen were under 20V, I think the first RCA versions used 110V and they switch to 12V… and no one Moron had noticed it. So, the high voltage can inhale some transient live into them – that is cool and it has revised my interest in the electromagnets.

I have ordered an experimental coil for my Vitavox. It will be with anti-corona measures (vacuum impregnated and so on) and I asked the coil to be able to be rated for 400V-450V. I think (home) sometime in the end of summer or during the fall I will have my fully functional playback back and will be able to try it. Thanks, Haralanov for the high-voltage tip, I am VERY surprised that no one spoke about it before. I am not sure about your battery experience – I think experimenting with different type of power supplies and filtering would be more fruitful, but the idea to excite and to energy the field with more voltage I think is very much worth to explore.

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