Finally caught up slightly and built two separate spider web style adapters for 12AX7 and 6DJ8. These tubes really are MUCH better than anything we tried before.
One adapter was soldered by a friend, and the second I screwed together using the Vectors and a breadboard which turns out to be much easier.
The 6AV6 tubes are supposed to be 1/2 of the 12AX7. I noticed that the 6AV6 tubes changed very much in character during burn-in (for the better) and took around 40-50 hours to reach full potential.
As regards the 12A7 and 6DJ8 families, does anybody know how the long the burn in period is, and if they change a lot in sound during and after burn in?
Right now I am listening to a Dutch Amperex Tektronix 6DJ8 from 1975 with the A frame getter. Funny, in my 6AK5 odyssey I found the Amperex tubes to have the strongest bass. With the Amperex 6DJ8 the bass is striking and goes lower (sub woofer territory) than any tube I tried. Overall, an excellent tube with nothing to criticize and only to enjoy listening to.
Artsi, I am just shaking my head in disbelief over what you accomplished with the octal tubes. To do what you are capable of is way beyond anything I can aspire to. I assume that bigger is better (heat dissipation?), but really, how does the sound of the octals compare to say the 6DJ8?
Trolldragon, when you have perfected the flying tube adapter, please let me know so that I can order one. My own adapters are very fragile, and I am afraid to as much as breathe on them lest some little wire will get lose or break....
Is less better? On a personal note, my receiver blew up, and I had it repaired for around $200. First I thought that I had crossed two speaker wires by accident when I moved a speaker. After carefully rewiring and going over all connections, I plugged in the receiver. Within a few minutes, poof, poof, and that sickening white acrid smoke again. Turns out that one speaker had shorted out internally and blew, and that is what caused the receiver to short out. Again.
So I am stuck with my 1980's Sony receiver and two speakers instead of four. Meanwhile my two subwoofers are disconnected. Still, with the Amperex 6DJ8 the sound is quite nice.
Oh well, less is at least livable....