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In Reply to: De-mag-na- tize posted by fatcobra on October 11, 2004 at 15:58:53:
told you so...
search the bottlhead forum for some proof - somebody actually measured before/after and that's about al that matters.
I use an old Nakamichi tape head demagger on my Telefunkens about once a week - now with little effect, but that's good. I don't want to have to do this every 2 hours. The first time you do this will be the biggest wow, especially on some 40 year old tubes.
Is it possible that removing and reinserting a tube or cleaning the contacts could be happening? Curious - if this magnetizing thing works it would be worth it - just asking if consideration of these things are an issue?
my tube pins are just about as clean as they can be - about 20 minutes of careful dremel polishing plus an application of PRoGold contact enhancer done pretty much monthly. There is no difference in sound between pulling them, swapping them, etc. There is a significant difference in sound when I do the demagnetizing. again - for reference a post in the bottlehead forum where somebody actually measured what happens
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