We get occasional inquiries about Wright Sound products, which were built by George Wright. George was a fellow Seattle area audio manufacturer, who built inexpensive, good sounding tube audio gear in his home workshop. Sadly George passed away in 2009. After he passed I was asked by his ex wife to see if I could find any documentation for his products in the, shall we say, extensive collection of surplus electronics gear and parts in his house and outbuildings. Anyone who knew George will not be surprised to hear that there were no documents to be found. George pretty much built his products from a schematic he drew up on scratch paper or out of his head, and often used the different parts in different builds of the same model amp or preamp.
You may see where this is going. There are now people who excitedly buy a piece of George's gear, discover it doesn't work, and then start asking around A) where to get it fixed or B) where to find schematics. Option A used to be Roger Hug, a local tech of some reputation in the vintage gear circles who would take on repairs of Wright Sound gear. Unfortunately Roger passed away in 2018. Option B I covered above - you will simply have to reverse engineer the circuit yourself or pay someone to do it for you.
George's stuff sounded good, no doubt. We shared ideas about tube audio design in the 90s, and George was influential in the design of our original Foreplay preamp. That said, we don't really have any better resources for George's gear than anyone else. There is a schematic for an early phono preamp design of George's in an issue of VALVE. Perhaps a forum member will be kind enough to look it up and post a link. PB may or may not be interested in helping with a repair. You will need to ask him directly about that. If the gear needs caps or something else that is relatively simple it might be worth asking him. If it is missing components, has a blown transformer, is a one off that wasn't a commercial product, etc., one might be better off moving on to a more easily repaired project.
