Submini vacuum tube assembly for octal sockets

thingiverse

This adapter is designed to accommodate subminiature vacuum tubes, allowing them to fit snugly into an octal base. The primary objective of this assembly is to serve as a substitute for the 6SN7 in audio amplifiers. The printed cover fits securely over the submini tube and attaches to the octal base, providing protection from damage, shielding fingers from electrical components, covering wires, and serving as a convenient handle to aid removal from recessed sockets. This project is considered intermediate-level due to the requirement for high-temperature filament such as polycarbonate or other materials like PEEK or PETG (not PLA or ABS). Soldering skills are also essential, and attention to pinout is crucial to prevent damage or injury. If you're looking for a straightforward solution to achieve a good-sounding 6SN7, purchasing an authentic tube might be the better option. New and vintage tubes can still be sourced online at reasonable prices, and existing knowledge on these tubes ensures there's no shortage of analysis and opinions on their sound quality. However, if you enjoy tinkering with your system and experimenting with lesser-known tubes, this project may appeal to you. Two versions are available: a flat base socket, which is highly recommended, or a walled base variant for those who already possess one. Additionally, I've uploaded a single-tube desktop holder to keep the base upright while working on it. For more variations of these holders, visit the project page at [link](https://www.thingiverse.com/thing:2933306). Use this adapter at your own risk.