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Old 05-28-2017, 07:00 PM
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Notimetolooz Notimetolooz is offline
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Join Date: Mar 2014
Location: Dallas, TX
Posts: 547
The lowest range does have the worst wave shape. The oscillator section has almost 100V peak-to-peak on the plate at some settings. I think the distortion is mostly due to the large signal there hitting the limits of the tube operating range with the supply voltage. I am puzzled why they chose a audio tube (12AU7) rather than something that works better at high frequencies (12AT7,12AV7).
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