Sinclair ZX Spectrum + Spectrum+ Spextrum Plus, vintage retro computer, CPU: Zilog Z80A at 3.5 MHz, ROM: 16 kB, RAM: 48 kB, Video: 16 colors, text 32 columns × 24 lines, graphics 256 x 195 pixels, Audio: buzzer, Keyboard: QWERTY 40 plastic keys, Software included in ROM: Sinclair BASIC, Expansion ports: 1 Expansion port, 1 Antenna (RF connection to TV),  2 Cassette recorder ports (out and in).

ZX Spectrum+

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The ZX Spectrum+ (ZX Spectrum Plus) is a low-cost home computer, manufactured in 1984 by Sinclair Research Ltd in the United Kingdom. It is a restyle of the ZX Spectrum with 48 KB of RAM: it has a larger case and a plastic keyboard instead of rubber. The technical characteristics of the ZX Spectrum+ (ZX Spectrum Plus) are the same as the Sinclair ZX Spectrum.

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The Sinclair ZX Spectrum+ generates a color image and has an internal buzzer for audio.

Sinclair ZX Spectrum + Spectrum+ Spextrum Plus, vintage retro computer, CPU: Zilog Z80A at 3.5 MHz, ROM: 16 kB, RAM: 48 kB, Video: 16 colors, text 32 columns × 24 lines, graphics 256 x 195 pixels, Audio: buzzer, Keyboard: QWERTY 40 plastic keys, Software included in ROM: Sinclair BASIC, Expansion ports: 1 Expansion port, 1 Antenna (RF connection to TV),  2 Cassette recorder ports (out and in).

Ho deciso di acquistare questo retro computer, insieme ad altri computer, nell’estate 2021. Ecco il video dell'acquisto del lotto:

Sinclair ZX Spectrum Plus start screen

La schermata di avvio dello Spectrum Plus mostra, in basso, la scritta "(c) 1982 Sinclair Research Ltd", che rimane fino alla pressione di un tasto. L’immagine è disponibile all’uscita RF (canale analogico 36). Nel caso del mio computer, il venditore aveva già fatto la modifica video composita, per cui, al connettore di uscita, non è presente il segnale RF, ma è presente il video composito CVBS.

Sinclair ZX Spectrum, schermata di avvio, boot screen, startup screen, (C) 1982 Sinclair Research Ltd

Technical characteristics of the ZX Spectrum+ (ZX Spectrum Plus)

CPU: Zilog Z80A a 3.5 MHz

ROM: 16 kB

RAM: 48 kB

Video: 16 colors, text 32 columns × 24 lines, graphics 256 x 195 pixels

Audio: buzzer

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Keyboard: QWERTY 58 keys

Software included in ROM: Sinclair BASIC

Sinclair ZX Spectrum+, Spectrum Plus, Speccy, rear view connectors, expansion, 9VDC, MIC, EAR, RF TV channel 36

Expansion ports:

  • 1 Expansion port
  • 1 Antenna (RF connection to TV)
  • 2 Cassette recorder ports (out and in)

Dimensions: 31.9 cm (width) x 14.9 cm (depth) x 3.8 cm (height)

Emulation

E’ possibile emulare lo ZX Spectrum+, su un comune PC Windows, tramite l'emulatore EightyOne, che emula anche altri modelli di Sinclair. In questo modo, è possibile provare ad avviare programmi e giochi, nonché programmare il retro computer, in maniera semplice e comoda… senza nemmeno possedere il Sinclair ZX Spectrum Plus!

Sinclair ZX Spectrum + Spectrum+ Spextrum Plus, vintage retro computer, CPU: Zilog Z80A at 3.5 MHz, ROM: 16 kB, RAM: 48 kB, Video: 16 colors, text 32 columns × 24 lines, graphics 256 x 195 pixels, Audio: buzzer, Keyboard: QWERTY 40 plastic keys, Software included in ROM: Sinclair BASIC, Expansion ports: 1 Expansion port, 1 Antenna (RF connection to TV),  2 Cassette recorder ports (out and in).

Power supply

The power supply of the Sinclair ZX Spectrum+ is external. It generates a single 9 V voltage in direct current, unstabilized, with wide tolerance. The available current is 1.4 A.

Sinclair ZX Spectrum+, Spectrum Plus, 9VDC 1.4A power supply

Papers

1. Sinclair Spectrum BASIC programming manual

2. Sinclair ZX Spectrum introduction

3. Sinclair ZX Spectrum service manual

Date of entry into the collection: 08/25/2021

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