this should answer to your question : http://www.musicradar.com/gear/all/amplification/night-train-nt50h-448016/review/2
Paolo Ambroso – Italy
December 21, 2011 - 10:54
Hi, i need the schematics too of Night Train 50, if you find please let me know..
butch cabrone – san diego
November 30, 2011 - 20:07
I just purchased a vox nite train 50 last month, and i need to install replacement EL34 tubes that the seller sent me to improve the performance of this demo amp.
Do you have a schematic for the nt50, and if not, do the nt50 amps have a bias pot... i have not been inside the amp as of yet.
thanks for your consideration
Reply to butch cabrone
strangebru – philadelphia
April 10, 2012 - 20:44
Have you found out anything yet about biasing ?
Wondering the same thing myself. Looked inside and saw a bias connection with 3 prongs. center prong was ground. Saw two variable resistor pots, and thinking that these are the bias pots. But haven't tried this out because, as you, I don't really know what the prongs are reading or connected to, and although the resitors are likely bias pots, i'm not willing to gamble.