12AT nos , flash at start ?

hi, is normal, when i start nagra pre, tube 12at7 make flash ?

like this

https://www.youtube.com/watch?v=PBjWmeuDurk

mati197904-03-2017 12:05am

8 responses Add your response

pops Details Discussions Posts This discussion Message User 2,273 posts 04-03-2017 at 10:32pm Copy Comment URL Report Comment Edit Delete yep mullard flash for me too! Enjoy the show.
wolf_garcia Details Discussions Posts This discussion Message User 6,695 posts 04-03-2017 at 06:57pm Copy Comment URL Report Comment Edit Delete I have a couple of sets of NOS Mullards and a large part of why I like them is the flashing on startup…they sound great also, but the flash is simply a wonderful thing. Gold Pin 6201s…el flasho mundo.
atmasphere Details Discussions Posts This discussion Message User 11,793 posts 04-03-2017 at 05:50pm Copy Comment URL Report Comment Edit Delete When you see that flash, its the flash of quality.
mcintech Details Discussions Posts This discussion Message User 128 posts 04-03-2017 at 05:12pm Copy Comment URL Report Comment Edit Delete Perfectly normal in a Nagra preamp. (Full disclosure; am US service center for Nagra)
jedinite24 Details Discussions Posts This discussion Message User 1,503 posts 04-03-2017 at 04:53pm Copy Comment URL Report Comment Edit Delete Agree with the posters above. It is normal with Mullard 12AT7 tubes. I saw the flash when I had a pair installed in my Jolida 502P amp.
swampwalker Details Discussions Posts This discussion Message User 5,138 posts 04-03-2017 at 02:31am Copy Comment URL Report Comment Edit Delete Yep, normal.
baranyi Details Discussions Posts This discussion Message User 719 posts 04-03-2017 at 02:27am Copy Comment URL Report Comment Edit Delete My brimar 6060 (equivalent of 12at7) do the same
noromance Details Discussions Posts This discussion Message User 9,766 posts 04-03-2017 at 01:23am Copy Comment URL Report Comment Edit Delete Yes. It’s fine. Mullards?

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