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16th December 2004, 06:49 PM
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#2 |
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diyAudio Moderator
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The first is a FET, not a tube. The second sure looks like a 12AT7, though I wonder if the X got pulled out of context.
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16th December 2004, 07:22 PM
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#3 |
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diyAudio Member
Join Date: Jan 2004
Location: Trondheim, Norway
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Gday.
Yes. wrong number from the clipboard, the first one should have been 7025. >XECC81. i was refering to the phono prestage by Aleksandar Kitic http://tubeaudio.8m.com/Rpa/rpa.html |
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16th December 2004, 07:35 PM
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#4 |
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diyAudio Moderator
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7025 is a selected version of 12AX7/ECC83, supposedly for lower noise. Looking at the schematic, the "X' in XECC81 is most likely spurious.
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