1930s Tube Amp Project AL4 AF7 Part8 - sound testing different output transformers

This is a youtube blog about my tube amp project. Idea is to build a moden sounding 'higain' tube amp by only using parts from my spare part pool including tubes from the 1930s (AF7, AL4, AZ1). No new parts, no semi conductuctors. First parts are in german language, because I just wanted to document it by myself, but now I decided to publish it on YT ;) Maybe I add english captions/sub titles later. The videos are raw and unprocessed, taken with an old Nokia N8 phone. Anyway, enjoy :) https://youtu.be/h2PPiJGF7hc https://youtu.be/pJgXxGX_0HE https://youtu.be/YZ0p1COH-_k https://youtu.be/7EAPEbQaKCE https://youtu.be/4XFxOcl14Ls https://youtu.be/bq64NQsWXE0 https://youtu.be/SdkY89k9Kjs https://youtu.be/MWgJk53Jt0I