Here us a vendor with 2 different blank boards...
https://www.ebay.com/sch/i.html?_ssn=www-tubes.rs&store_name=tubesrstubeamplifiersnostubes&_oac=1&_trksid=p4429486.m3561.l170197
DeKay
I need some high quality Printed Circuit Boards Made (DYNACO ST-70)
I would like to find a manufacturer that can make high quality printed circuit boards, I was getting the from a company in the North-East but they haven't been able to provide them for me...........I have a copy to go by.......THANKS