ZX Spectrum Pentagon 128Kb AY Kit(DIY),Controller PS2,Module Sram SET

3 lots in 1 1) Designer for self-assembly of the popular retrocomputer Zx Spectrum Pentagon 128 (AY), includes all components, as well as imported RAM memory. Onboard there is a built-in music processor, as well as 2 connectors for a modern drive and a molex power connector. There is also a place to install a molex connector to power the computer from a modern power supply unit from a PCThe diameter of vias is reduced to 0.4 mm and hidden under the maskIntegrated AY-3-8910.Integrated port of Kempston.Added block capacitors in SMD version on the back of the board.The printer's ROM has been converted to a test one, with the main ROM being switched by a jumper that is located near the drive connector.Rewriting resistive assembly on the processor data bus with a + 5V pin on the edge, not on the center.Added screen for quartz 8 MHz.Improved power bus.Added mounting holes.The blinker of the cursor is altered on D100 instead of KT315.Unconnected inputs of microcircuits are pulled up to + 5V.PCB covered with blue solder mask and silk-screen printingAdded mounting field to install molex type connector for floppy disk power supplyAdded pins for installing SMD tantalum capacitors on the power busAdded pins for installing SMD components instead of pinoutsetc 2) The PS 2 controller of a modern keyboard, will fit the ZX Spectrum clones instead of the old one, the connection is made with 16 wires, there is a circuit and installation. Suitable for Pentagon 48,128, Leningrad 48, etc 3) Board - module, Pentagon Memory Expansion up to 512kb, board only