The Triodino is a famous design and kit that was distributed for HiFi builds in Italy.

This version uses a circuitry with 6J5 single-ended drivers, for maximum sound purity.

The triodino was completely rebuilt by me in 2025, improving the HT power supply with a new design: a second inductor was inserted in the HT power supply (double inductive Pi), new paper-in-oil, MKP, and electrolytic capacitors, Audionote silver paper-in-oil interstage capacitors.

The transformers are the original megahertz ones, the output transformers are the high-quality TU102, with a 3kΩ primary and 6Ω secondary windings in 18 sections; a double-C core made of 0.1mm laminated tape.

Slavonian oak cabinet and clear-coated copper top plate.

Compared to the original version (the photos show how it was before with the 3 red capacitors), the sound has improved significantly, especially in terms of dynamics, depth, and control of the low range. It offers a more precise and stable soundstage and greater overall transparency.

It comes with 2 2A3 RCA tubes and 2 6J5 ATES (RCA). I ​​may have other tubes available.

It is shipped with a very protective double package.