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Tube availability: what would you do?

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I'm a big fan of 12v space charge tubes, but I get paranoid about the availability of them because they're no longer in production. I'm sure this applies to everyone who uses tubes that aren't being made anymore!

I tend to buy the well-known brand tubes as I need them, but lately, I've been thinking that I should just stock up on the cheaper Japanese and low-brow brands so I don't have to worry about running out. However, what if that means they'll only fail faster?

So what would you do... go for quality over quantity, or vice versa?
 
I wouldn't worry.

As far as existing stocks go, specifically on the 12V space-charge tubes: I asked one tube vendor about the availability of 12AE6A and 12FM6 tubes (you may well know them, 12V triodes). The reply was that thay thought that they had 6-8,000 12AE6A's and 4-500 12FM6's. And that's just one vendor.

The fact that these are so seldom used means that it's unlikely that the stocks will be depleted any time soon. Unlike "rare" audiophile tubes.

It also means that these tubes (at least the ones I mentioned, in the US) sell for only $2.00 or so each. So if you're worried about it, why not buy 10 or 20 or 100 of your favorites?

Pete
 
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