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Cayin A-70t tube rolling ...EL34 Tubes?...

I'm looking to do some tube rolling with my new Cayin A-70t and I'm curious if anyone has any experience doing that. I noticed that there seems to be two models around. One that has a switch to select EL34 or KT88 and one that has the bias pots in place of the switches. I have the one with the bias pots. I'm thinking about trying some SED winged C and some EH 6CA7. What would I set the bias to for use with these tubes. The default is .35-.4
mailman199

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mailman199 OP
34 posts
 
Thanks. I just spoke with Steve and let me first say is is a SUPER nice guy and was very willing to help.

Essentially the bias settings are .30-.40, BUT you need to turn them all the way down before powering up with the new tubes.

Cheers!
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