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T > TOSHIBA  > HX-52     


Very little information about this HX-52 which was probably an extended version of the HX-51, but we don't know the technical differences between the two versions.

It was a standard MSX 1 machine which held a particular IC, also designed by Toshiba, and called T7937. Inside this unique chip one found a Z80 compatible CPU, a TMS-9918A Video Display Processor, and an AY-3-8910A sound generator. The HX-52 also offered three video outputs - RGB scart socket, TV aerial and composite video jacks.

Obviously, this computer was sold in very small quantities.

Thanks to E.Calogiuri for the pictures.


please help we have zx spectrum 48k and one 128k program running at 6mhz using external ram and snapper discs from velesoft site

Saturday 6th April 2013
Roger Jowett (Ulster Londonderry)
sam coupe


TYPE  Home Computer
YEAR  1985
BUILT IN LANGUAGE  Microsoft Extended Basic (MSX Basic V1.0)
KEYBOARD  Full-stroke 73-key with 5 function keys and arrow keys
CPU  Toshiba T7937 (Z80 CPU + TMS-9918A + AY-3-8910A)
SPEED  3.58 MHz
CO-PROCESSOR  part of the T7937 chip
RAM  64 KB
TEXT MODES  Mode 0 : 40 x 24 - Mode 1 : 32 x 24
GRAPHIC MODES  Up to 256 x 192 pixels
SOUND  4 channels, 8 octaves + white noise
SIZE / WEIGHT  Unknown
I/O PORTS  2 joystick, 2 cardridge slots, Tape-recorder, RGB (Scart socket), TV aerial, Composite video, Parallel printer, Serial RS232
POWER SUPPLY  Built-in power supply unit
PERIPHERALS  All MSX peripherals
PRICE  Unknown

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