Will Vincent "Dynaco" Amps

The kit offered by Kevin Carter at K&K Audio has always been of interest to me. Turns the original 35 watts per side into 10 watts triode.

Linkster, "Will Vincent vs Bob Latino??"

Simply a question of whether you prefer the original Dynaco Concertina circuit (Will Vincent), or one of the upgrades that "fixed" what was wrong with the original (VTA/Bob Latino) ala the Mullard long tail pair driver.

Historically the answer has been the Mullard LTP, with the experts pointing out all of the inherent flaws in the Concertina that had to be addressed.

As for me, I seem to be one of the few who trumpets the Concertina, appreciates beauty and simplicity in general, and this circuit in particular. Not to take ANYTHING away from the VTA, but I think the original has been long overlooked, underrated/underappreciated, and truly quite special. In fact, a guy I converse with began writing to me two days ago, commented on how happy his Jadis Orchestra Reference makes him, and related that he simply does not hear the same magical midrange in a friend's DA50S. He was likely quite surprised for me telling him the JOR simply employs what Dynaco made famous.

A testament to the quality of Dynaco's original circuits is that their products were made using low tolerance, inexpensive parts (with the exception of the transformers, of course) and they were often built by complete amateurs (most people don't know that "Factory Assembled" units were built by starving Drexel University students) yet they still sounded quite respectable.

But these designs had their weak points, too. Since they were intended to be built as kits, they often made compromises in the grounding and power distribution in order to make assembly easier. From personal experience, I can tell you that one can greatly improve the sound of a stock Stereo 70 by simply changing the way the cathodes of the output tubes are grounded and by changing the reference ground points for the feedback circuit.

does anyone have contact info for Will Vincent?

Will Vincent is Autospec.