This 6BM8 Vacuum Tube is really impressive. I purchased transformers from Sir Edrel... He designed the power trans at 200-0-200 and 3.15-0-3.15, and Output Transformers at 6k/8R UL tap... I copied the circuit from various schematics and I used the schematic mainly from
http://www.audioxpress.com/magsdirx/ax/addenda/media/205vanWaarde-pt1.pdf ... I made my own revisions based on actual output sound and most of the revisions by Sir Edrel. I will post the final schematic later. Almost all electronic parts came from SirEdrel... except for the tubes, Volume Pot, Chasis..
The Chasis is made of aluminum with acrylic side covers. Chasis are made by me, Benjie and Olan... really a pain in centering holes...
The Sound... really marvelous! Two Thumbs Up.... Sir Edrel heard it.... this 2W/ch can really perform well attached to an 8" Altec Lansing mounted on a gigantic baffles... In the picture this amp is 95% complete... still need to shine or paint the front plate...