Duh. I was looking for it at the taps and completely missed R33 at the potentiometer. Thanks!

I'm so happy that these are now available! The Train is already in my cart and I would have both the Match and the 18W if I had not already built those two (the hard way). I just have one question, I don't see any NFB connection in the Train layout. Was it omitted in the layout for tidiness sake? No big deal, because I'm sure it will be in the schematic when it is available.

Stoked!

Link to various versions of the Express schematic - https://www.google.com/url?sa=t&source=web&rct=j&url=https://schematicheaven.net/newamps/trainwreck_express.pdf&ved=2ahUKEwiGy_rV4MX9AhU6D1kFHSUAA9kQFnoECBQQAQ&usg=AOvVaw0J1iirwEHgvUKdQB0frjGp and a layout from Ceriatone.

That was my suggestion when I took the email survey. That would be very cool!

Also, if I'm not mistaken, the image on the home page of the partially populated board is a Dumble board and the main filter caps are 220uF 300v.

Unfortunately, I don't know where to find the 300uF 350v caps, but looking at the schematics and layouts of other clones, I have seen 200uF 300v filter caps used in Ceriatone Dumble clones, so I would guess that 220uF 350v would work just fine.

I have the same question, well, basically. Seems like you would be able to bypass the voltage doubler and simply rectify from AC to DC. @wdra65 Did you figure out a way to get around this?