Categories Uncategorized Post author By SergDun Post date May 17, 2011 No Comments on xquadra: 300B Single Ended Triode Mono Block Hi-Fi Amplifier. You can find some other cool projects from the same person here. Yeah it’s decided, I’m ordering a kit and building my own tube amp. ← → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ