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I would suggest 6N2P and 6N1P, it seems to me a lot of them were just released from some military warehouses, so prices on ePay dramatically dropped down. And they are still in current production. However, they are not exact replacement of 12AT7, but you have both high mu and low mu double triodes for your needs, good and cheap. However, for support and replacement it is better to have some 12AX7, but for a new production why to bother?
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Most wires and parts do in fact sound exactly the same. --Ethan
But sounds of 1 meter and 1 kilometer of the same wire are totally different --Wavebourn
Can I add that many bands sound better when they are 1Km away compared to 1 Metre! --Matt Syson  |