High Quality NEC 2N3904 (TO-92) Transistors AU Stock- Fast Post!. This listing is for one brand new (old stock) 2N3904. Sourced from a recently closed retail electronics business these high quality transistors may be ideal for your next electronics repair or design project!. Please contact me if you have any questions, thankyou for viewing my listing. Note- Beware of imitations!, we will only sell you genuine components from the original manufacturers that will work well, as intended in your equipment!.