Jan 28, 2018 · I have one RCA 5963 tube which I haven't tried yet. I've read they are a variation of the 12AU7 tube but intended for used on computers (my God, computers made out of tubes) …

May 13, 2022 · I learned about the useable variants of the 12AU7 a little later, including the 5814A and 5963 types. So I went searching for a good 5814A and found a Raytheon triple-mica one …

Mar 7, 2019 · All I know is that I got a great sound with my previous tube combination on the EAR clone ( a NOS NEC 12AD7 as V1 that does 75% of amp, a Siemens branded Ei ECC83 that …

Jun 7, 2018 · I just checked my Mac C20 tubes with my new Heathkit tube tester. I realized I am running GE 5814A in the 2 x 12AU7 sockets.

May 13, 2022 · I just finished a 12AU7 and it's variants tube search, depending on how much you want to spend the Amperex Bugle Boy 7316 D getter tubes are the best ever followed closely …

Jan 21, 2019 · Best 12AU7 is Brimar 13D5 long plate. Next best are CBS/Hytron 5814. Both tube numbers are 12AU7.

Jan 14, 2020 · All, I need to replace my stock tube . They are for my cd player. Any good recommendations? I think 6DJ8 is the equivalent of 6922 as well.

Apr 27, 2021 · I had in my stash of tubed at least good pairs of green label 5814, 5963 and the JHS 6189. I listened to the 5814 & 5963. Didn’t know if the extra little heater current has any …

Aug 9, 2020 · First of all congrats on your new preamp! What are the stock 12au7 tubes that come with it? If the dealer recommends Sylvania (which is my favorite NOS 12au7) then its …