[Greg]

Hi Mark

You can try looking here. The quality seems pretty good. If you have a printer, you can print them or I think they will print and mail them for $8.
https://www.tubesandmore.com/schematics

I bought a CD from EBAY several years ago with all of the Rider's and Beitman's schematics. They were very good but unfortunately I can't find the seller.

I see this guy selling them. I can't attest to the quality, but it might be a good option too.
https://www.ebay.com/itm/Tube-Radio-Sche...0311187040

Looks like he sells printed copies for individual radios too. He says it's 13"x19" for $7.50 with shipping...
https://www.ebay.com/itm/Beitmans-Riders...2316312964

I usually print my own and will blow up and tape together for enlargements if I need to.