1967 Ampeg SB-12
Here's a great little vintage amp from 1967. Originally meant to pair with the Ampeg Baby Bass upright, this amp is a great for studio usage. And although it does not get very loud, the tone is warm and classic. Twenty-two watts into a single 12" speaker and a very basic volume, bass, and treble knob layout.
I upgraded this amp with a grounded plug (for safety reasons), put in a new on/off switch (old one was not original and faulty.
I also had a dolly made from Fliptops that is same specs as the original dolly it would have come with back in the 60s.