Chapter 1
7
Introduction
The SPECTRA interface is a multi-purpose peripheral designed for use with a 16K or
48K Spectrum (50 Hz model only). It will not operate with a 128K Spectrum.
The SPECTRA interface provides the following facilities:
SCART connectivity using RGB to provide a clearer, brighter and better centred
picture than that achievable using the standard TV connection.
Sound output through the television speaker(s).
New display modes, providing up to 64 colours, increased vertical and
horizontal colour resolution, and multiple screen support.
Kempston compatible joystick socket, with support for auto-fire joysticks.
ZX Interface 1 compatible RS232 serial port.
ZX Interface 2 compatible ROM cartridge socket (optional fit).
Onboard 16K ROM to override or extend the Spectrum’s ROM (optional fit).
Reset button.
Rear gold plated full width expansion bus.
Note that the ROM cartridge socket and the onboard ROM facilities are mutually
exclusive since it is physically only possible to fit one of them.
The photograph below identifies the key items found on the SPECTRA interface.
Identification of SPECTRA interface key items
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