[leica m3]

6973 in a pair of Ampex mono blocks.
EL84 in the Bottlehead Seductor
6DN7 in the Bottlehead SEX.

[opnly bafld]

6973 in a pair of Ampex mono blocks.

 

[gnitta]

Matched quad of 5881’s.  I also roll in 7581’s. The amp is an Audio Note Soro signature SE.

[jmdavidson87]

I have Osram PX-25’s in my Art Audio SET amp.

[Escott1377]

Right now it’s an octet of KT77’s in my mono blocs and a pair of EML mesh 300B’s in my pre.

[rockadanny]

Pair of 6C33C per mono-block

[vonnie123]

Dual 1626 - Kenzie Encore Headphone amp/ preamp.

[onethousandanswers]

Just did a lengthy tube trial for my Octave v110 and here are my rankings
1. Psvane EL34-PH
2. Shuguang Black Treasure 6CA7 / Tesla EL34 (tie)
4. SED Winged EL34
5. Electro Harmonix 6CA7 / Siemens EL34
7. Tung Sol KT120

I was surprised that the NOS Siemens didn't perform as well as I'd expected. I could probably live with most of these tubes except for the KT120s.

[decooney]

KT150 by TungSol

- preceded by a triode 6SN7 tube preamp,
- and dual-triode 12AU7 / 12AT7 small input and driver tubes in each mono block tube amp. 

Provides open air transparency, power, with a nice tone and balance with the triode preamp and amp input tubes in the signal path.

[jjss49]

depends on which amp i am running -- trying several to drive my new spatials to figure out the best match

old stock mullard or tesla el34's in linear tube audio zotl40 ref amp
new tungsol kt120 in arc ref 75 amp
svetlana wing c 6550c in arc vt100-2
new gold lion kt88 in arc ref 110

still figuring it out...