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.
The Sinclair ZX Spectrum+ generates a color image and has an internal buzzer for audio.
I decided to buy this back computer, together with other computers, in the summer of 2021. Here is the video of the purchase of the lot:
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.
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
Keyboard: QWERTY 58 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)
Dimensions: 31.9 cm (width) x 14.9 cm (depth) x 3.8 cm (height)
Emulation
It is possible to emulate the ZX Spectrum+, on a common Windows PC, through the Eightyone emulator, which also emulates other Sinclair models. In this way, it is possible to try to start programs and games, as well as program the back computer, in a simple and comfortable way ... without even having the Sinclair ZX Spectrum Plus!
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.
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