Revisited design of the original SpecDrum by Cheetah for the Sinclair ZX Spectrum
N.B. the two most left resistors are 0 Ohm jumpers, they are already included in the top layer of the PCB
N.B.1 The PCB size and mounting holes do NOT correspond with the original PCB.
N.B.2 The size of the PCB interferes with the HDMI connector in the Spectrum NEXT
Photo of the actual reproduced and tested PCB