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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: What octals?

You are best served with a mu of 70 to 100 tube, driving a DHT Type 45 or a 2A3. I prefer mu of 100 for a LIVELY music presentation at all-day-long listening levels. Jim Dowdy has listed the high mu octals.

In my experience, any octal is a degrade from half a 12AX7 Frihed89, because the octal socket requires eight soldered joints EXTRA, tube elements to octal pins. On a mu of 100 tube, THIS alone is an audible sonic degrade.

The 9 Pin miniature 12AX7 has the tube elements leading right out of the tube envelope, with NO extra soldered connections. A Loctal 7B4 is similar, but its sometimes hard to keep 7B4 tube pins from rusting.

Jeff Medwin



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  • RE: What octals? - drlowmu 06:51:14 12/06/14 (0)

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