Jadis with Telefunken 12AX7/ECC83 tubes

If you want to try this combination:

JP-80MC in the Line Stage:
1st Tube; 12AX7 Tongsol
2nd Tubu: 12AX7 Tongsol
3rd Tube; 5751

please let me know.... Pierre Gabriel

---> Pierre
- how do you identify first tube in the JP80 preamplifier line stage - counting left to right? I thought that left and right tubes should be the same and the center tube may differ like (it is positioned with pins toward other side).

- What Tundgols do you suggest - can it be gold pins from current production? I heard good opinions about them.

- I have 5751 JAN GE - I used them before in DA88S.

- Waht input tubes do you recommend for inputs in JA80.

I forgotten to mention that the set is 25th Anniversary Gold special edition - a little different than standard edition, but it does not matter in tube rolling.

So far I returned in preamp to stock Electro Harmonix and overall prefer them than Teles in preamp.

-- Right to the Left

-- Tung-Sol 12AX7 new stock,current production, not with gold pin, it push the top end.

-- 5751 Jan GE, it is the good one

Pierre Gabriel

It is coincidentle that in the DA-60 I have that both 12AX7s are current production Tung Sol steel pin. I swap these for Sylvania triple mica blabk plates from the lat 50s. I just had some fresh looking RCA Command 5751s which were simply to fragile and break up fast. Perhaps good for a guitar but not my amp. The 12AU7s right now as an experiment are Telefunkens ECC82 but I am much more pleased when the Heerlen 7316s are in those positions. !Simply holographic!
I almost had a fit when I heard distortion at moderate-low volumes thinking it was the expensive TS KT-88s I put in for over $400.
Thank goodness it was an older tube that tested well but was a variant of the double mica 5751 RCAs Which are much older but appeared at least close o NOS. The amp is truly a very powerful circuit I bought a sleeve some were NOS the others used. It is an older amp but has no cmplaints held up quite well during this last year. A 60 watt amp has no business sounding like a 100 or more wpc. The reputation for thin weak sounding amps went away with the Ei KT-90s it used to use. That I had intended to replace with EL34s. The a very concise and no nonesense recommendation from Jim McShane thus the Gold Lion KT-88s

I tried Amperex, Mullard, Tele and four others I do not recall now - The Telefunkens NOS were the winners in my system for a DA50S both in the 12Au and 12AX sections.

Closer to them were a set of Amperex Buggle boys, a little dry in my opinion compared to the magic of the Telefunkens IMO.

Regards,