Time to get this site upgraded, so we are passing the hat around. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html
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OC, without the CRT connected it makes no difference. With the CRT connected, IIRC, there is a high pitch whine at either end but not sure what the hum does. I can reconnect the CRT and and see if needed.
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