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Old 22nd March 2011, 12:06 AM   #1
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Default Latest project SRPP valve front end with class D MOSFET output stage.

Picture of my latest project, married an SRPP valve stage to a class D amplifier.
IRS2092 class d chip and a 12AU7 SRPP valve stage.

Click the image to open in full size.
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Old 3rd May 2013, 07:15 PM   #2
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Hey Nigel.. I realize it is an old thread but wonder if you could let us know how it sounded. Did the high output impedance of the SRPP affect the sound? IRAUDAMP7S guide recommends no more than 600 ohms..
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