CAD SLI-80 Signature: Re-tubing

Hi,

I am now using EH KT88's in the triode mode and they are a great sounding tube. I tried EH EL34's both triode and ultralinear bisased at 50 for ultralinear and 70 mA for triode. and the bottom end was very tubey and the highs not as bright as compared to the KT88's. I wouldn't recommend them for the SLI80.

For a rectifier I'm using a nos National Union 5U4G from the 40's which I like a lot. Tube Depot has them. Sylvania chrome dome 6SN7GT's from the 50's and a pair of Amperex 6DJ8's orange globe logo A frame getter from the 60's round out the tubes.

regards,

Larry

I am using EH KT-88's in my SLI-80 F1. And they sound a lot better than the Sovtek 6550's.....not just by a little....I mean a whole lot better.
I also agree with Larry on the Sylvania 6sn7gt chrome domes.
Ed

I just ordered some NOS tubes from Andy at Vintage Tube Services today:

Sylvania 6SN7-GTB
RCA 5U4G
Mullard 6922 (the real thing, not the 70's and later stuff everyone else passes off as NOS)

I'll work those in, one matched pair at a time. Unfortunately, I've blown my NOS budget for the time being. I'll have to go with current production power tubes, as the NOS tubes are pricy. Thus far, it seems like the KT-88 is a favorite.

I have had the 1950's RCA 5U4G's in for about a week now...very cost effective improvement. The amp is a bit more dynamic, with improved low-level detail. The soundstage is a tad wider, and much more coherent.

The 1950's Sylvania 6SN7's go in next. The Mullard 6DJ8 tubes didn't test out well enough, so I got a pair of Bugle Boys from Andy instead.