Will Vincent "Dynaco" Amps

bill thomas' work is great too, over at audiocircle. look under the vintage audio forum.

I have one of Will's Dynaco ST-70 rebuilds. I have found it to be a very good amp. It has a nice smooth sound. It also very good bass for a lower powered tube amp. Though the sound was good the way it came, i couldn't help but roll some tubes. I ended up with winged "C" el-34's, RCA 7199's and a Mullard gz-34. With these tubes i feel the amp jumps up another level or two. The tube that made the biggest difference was the gz-34. They aren't cheap, but the improvement it made to the overall sound is well worth it.

I have one of Will's st 70 amps and it is a piece of art.

The amp sounded nice with the el34 tubes in it, but I also wanted to try some tube rolling..... and after a matched quad of gold lion kt66 re issues, this amp has unreal depth, imaging, and much better detail than before.

Now I need a real pair of speakers... I currently have quad 11L mini monitors.

It does not hurt that I am using a classe audio dr6 preamp, but even after adding the pre the magic was not there until I added the kt 66 tubes.

As an added benefit from the kt 66's , they run MUCH cooler than the el 34's and were easy to bias since Will puts in an extended range very high quality bias pots in his amps.

I've got a pair of Will's Dynaco mk iiis; beautiful aesthetics and sonics. Just one word on the looks: WAF was off the scale (glowing tubes!), and everyone who comes in the living room makes a beeline for them.

Dav65mus,
I was not aware i could use kt66 tubes in this amp. I know i can use kt77's. I will have to look into this. By the way the amp is a work of art. My girlfriend thought it was a bomb when i openend the box, but i think it looked great.

Tommy