Shop RC2014 kits, modules and PCBs You cannot add "ZXTT Module - 1.7734MHz Clock for YM/AY chips" to the cart because the product is out of stock. Base Kits (9) Core Modules (7) Expansion Modules (20) Backplanes (5) Bare PCBs (6) Components (11) Tynemouth Kits (4) Coming Soon (3) Gifts (1)