No, just heat and electricity, set it and forget it. Found a link but it can be a little daunting. Don’t try this till later later.
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Well I ran the Sylvania overnight, and the hum moved from just the right channel to both channels. No hum with the stock tubes, both of them. I tried pairing with the stock 6AS7 and Sylvania 6080, and the hum was definitely there. This is quite the curiosity.
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I’d still continue with the overnight thing. I’ve had some Russion tubes take a week to burn in. If anything try cleaning the metal pins under the Sylvania with rubbing alcohol with a qtip, might help.
Got it. Will do just that.
OK! I got a new Tube to try out - an RCA VT-231 with smoked glass - burned that in overnight. Hum GONE. No hum after burn in. Found my new favorite 6SN7 for this. And it sounds so languid, warm, yet clear. It sounds perfect.
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Awesome. Great tube .
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Question. I’ve seen an adapter to roll a a 12AU7 into the 6SN7 slot. Has anyone tried this? I have some extra Amperex 12AU7s, and I’m tempted to see what happens. Is it safe? Will it do good things?
it’s safe as long as you don’t crank that volume.