The 2A3 is a direct-heated triode that is currently very popular.
This is a very popular vacuum tube used as a power amplifier. This item is 2A3 with a rare red box and red letters.
Pass/fail judgment will be made using the USA TV-7D testing machine, and pairs will be determined by GM. This product has an actual machine, so it has even been tested for sound output.
Price is for a pair.
It's NOS.
This item is in short supply. This is the last time, so please purchase as soon as possible.
