Seeking suggestions for 6922 tubes

+1 @dekay . Great advice.

Sooo many to choose…after rolling many tubes the ones that sounded best to me in my DAC are listed below.  Brent Jesse is a good source but some what pricey.   Deals can be found on EBAY from reputable sellers by experienced buyers.  
Mario Miniwatt (France Philips) E188CC(7308) - rare and pricey

Valvo Red Label E188CC (Amperex Holland)- also rare and pricey

Amperex 7308 (usa) E188CC (Holland) 60’s-70’s

Siemens E88CC 60’s-70’s
Amperex 6922 (usa) E88CC (Holland) 60’s-70’s

Amperex ECC88 Bugle Boy 60’s - to my surprise these sound really close to above tubes.  Best buy and readily  available.  Best value that I have come across in my mind.

Phillips Miniwatts basically the same Amperex Bugle Boys 

Has the New Pre Amp' been supplied with a stock 6922?

Have you tried your still used Telefunken tubes in the New Pre Amp' ?

My experience with swapping out ECC88 and 6922, is that a Valve Brand and Period of Production can vary quite noticeably in their sonic when used on a particular device and the demonstrations I have been present at, has shown the findings of Tube Rolling will vary across devices. Hence I use Two Different Brands from early 60's production on a DAC and Phonostage.  

Either of Interest or not, I recently learned a adaptor socket can be used to allow for a 6SN7 to be used as an alternative Tube.

When my system is once more fully assembled, I intend on trying this out as I have access to many versions of these tubes.

@roxy54,

Many nice tubes in 6DJ8 family, especially ones made between 57-65 for a great tone and some made till 73.

6922 and 7308 would last longer but that would depend also of how hard the circuit pushes them. Some ECC88 will sound better than E88CC or E188CC but with a shorter life span. Please note that due to construction all these tubes can go noisy, so sometimes are a waste of money, even buying from a good source.

Usual suspects for good sound but expensive are Siemens, Amperex (Holland and USA), Teles (though i find them a bit overrated) and French made tubes like Dario and RT. Better value ones are Teslas early 60’s and red Tungsrams. In my experience, after trying most of them, the ones i would look for are:

Holland D getters, Holland (62-65), Holland orange o getter (67-68), Siemens Cca or E88CC(early), Siemens E188CC A frames, Amperex USA up to 65, and Mullard CV4293.

My earlier comments as @xenolith posted have not changed since i find Voskhods of that era (75-79) to be the best all rounder, with still better pricing, nothing missing, not hifi terms for that tube, simply fit and forget. They last long, are linear in presentation, have great bass and flow, a big picture, generate less heat at glass envelope, are quiet and rarely go microphonic. Much better than EV versions.

Last note, most modern tube units are manufactured with current Russian tubes in mind, so using the best alternative would be a good thing.

One Issue is to find a good vendor for those.