These tube amplifiers were painstakingly built. The wiring is uniform and perfect. They are as beautiful on the inside as they likely sound on the outside. The builders could be considered anal retentive, but in reality they are as beautiful and artful on the inside as their creations. I am happy to share these pictures of many beautiful amps with colorful and consistent capacitors, twisted wiring, parallel runs, and in some cases even the unused wires are artfully scrolled around.
As beautiful on the inside as the sound they create. here are some wonderful tube amps:
EDIT: The first two images disappeared from the internet so I found a couple cool pics elsewhere. The second 2 pics are from the OP.