Univac had similar single-tube modules (but without the handle), as well as multiple-tube modules. See this video: https://www.youtube.com/watch?v=NVbjXHR6WAY
The BRLESC computer used printed-circuit boards that had components and a single tube (parallel to the surface). I have a Burroughs module with 8 tubes.
Philbrick op amp K2-W was an analog circuit with two dual-triode tubes on top of circuitry, with an octal plug at the bottom. I have one with data sheet but have never fired it up.