Little Gem & Little Gem MkII

386-based mini-amplifiers

by runoffgroove.com

This project is rated 1 out of 3 for the level of complexity.

For an alternate version of the Little Gem, check out Ruby!





For better compatibility with effects driving the Little Gem, a FET buffer can be added. Both the Little Gem Mk II (seen below) and Ruby schematics include a simple buffer design. No further circuit modifications are necessary, however the input capacitor value of the amp may need to be adjusted to taste.

Listen to it!



Pablo De Luca (aka Gringo) contributed PCB layouts for the Little Gem (PDF, 41k) and Little Gem MkII (PDF, 94k).











Listen to it!



Little Gem by runoffgroove.com is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Permissions beyond the scope of this license may be requested.