Linlai 6SN7

I am using Linlai 6SN7 in my Supratek Cabernet preamp. I have noticed that the tubes run vey cool to touch even after four hours of use. Is that normal for these tubes? Thanks.

couger4u05-13-2022 1:36pm

Showing 2 responses by elliottbnewcombjr

elliottbnewcombjr Details Discussions Posts This discussion Message User 5,748 posts 05-13-2022 at 03:00pm Copy Comment URL Report Comment Edit Delete Sounds great? Enough Volume? Low Heat! Terrific. Doing research, I checked with McIntosh about their vintage tube preamps. They confirmed: originally the preamp and tuner walnut cases had no top vents, even my mx110z tube tuner/preamp with 17 tubes. They made matching wood cases for amps with top vents. Eventually they simply used the single top vented case for both preamps and amps, kept matters/stock easier.
elliottbnewcombjr Details Discussions Posts This discussion Message User 5,748 posts 05-14-2022 at 12:59pm Copy Comment URL Report Comment Edit Delete OP, others, Do you have your own simple tube testers? I cannot imagine owning tube equipment without one. simple, seller seems to know what he is talking about https://www.ebay.com/itm/325188757089 another https://www.ebay.com/itm/294978988024 I have this one https://www.ebay.com/itm/325186243707 they make a slightly larger model 257, still very portable there are a lot of good ones listed now https://www.ebay.com/itm/325188513865 people say: " this little one agrees with my other testers". that's always been true for mine as well. I've got a big calibrated one around here somewhere, they always agree, I don't bother with it any more.

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