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7th March 2008, 12:19 AM
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diyAudio Member
Join Date: Apr 2004
Location: Plainsboro, NJ
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I have no idea if it has been tried. I can see a 6EJ7 in the 2nd gain block role of a passive EQ phono preamp. A CCS loaded 6922 in the 1st gain block role should provide enough gain to get past pentode partition noise effects.
Look at the data sheet. Notice that both gm and RP are high. A DC coupled voltage follower is needed between the 6EJ7 and the O/P jack.
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Eli D. |
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6ej7 Phono preamp?
