Changes
Ferenti --> Ferranti
Information from the manual:
The Music Machine incoporates two Ferenti Ferranti devices for digital-to-analogue (DAC) and analogue-tod-digital (A to D) conversion.
The part numbers are ZN429E8 and ZN449 respectively. The circuit also include a Motorola 6850 ACIA (Asynchronous Communications Interface Adapter) for handling the MIDI channel, two anti-alias filters (one for input and one for output), a discrete microphone amplifier and a headphone amplifier. The clock signal for the ACIA and the ZN449 is provided by a ceramic oscillator.
