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L > LAMBDA ELECTRONICS LTD > PC 8300   


LAMBDA ELECTRONICS LTD
PC 8300

The Lambda 8300 is basically a ZX-81 clone. Made in Hong-Kong (by Lambda Electronics LTD? DEF?), it was designed as a cheap computer for initiation and was licenced to many companies throughout the world. This explains why the same computer can be found under many different brands and names (DEF 3000, Power 3000, Basic 2000, Basic 3000, PC 2000, PC 8300, Marathon 32K, IQ 8300, Futura 8300, Your Computer, etc.). But on all mainboards is written a generic "PC 8300", which explains why 8300 or 3000 are often used in licenced names.

The system is thus a cloned ZX-81 with a modified ROM (to avoid legal problems), a better keyboard, more RAM (2 KB), sound features, a composite video output and even a joystick connector (Atari compatible). These represent in fact all the upgrades ZX-81 users usually wanted to add first to their system, but all bundled for a cheaper price.

With its modified ROM, the PC-8300 was only ZX-81 compatible with Basic programs. But soon, a ZX-81 ROM was available to turn your system into a real Sinclair ZX-81 machine, being able to run all software including machine code.

Different addons were available : 16 KB and 32 KB RAM upgrades, color (and high resolution graphics ?) expansion, joysticks, printers... The expansion bus is supposed to be compatible with the ZX-81 one (to be confirmed).

_______________________

Lambda in Norway, by Knut-Ivar Robertsen:
I do believe that the Lambda was marketed in Norway by some sort of "order through mail company" with the name Marathon. A friend of mine had one. He had a memory expansion pack plugged in the bus on the back of it which gave it a total amount of memory of 32kB. It was as far as I can rememberer completely compatible with the ZX 81. We typed in some ZX 81 games in BASIC from magazines on it and they worked fine.

Lamda in Denmark, by Michael Hansen:
In Denmark it was sold as the "Lambda". It was in the shops and a hell of a lot better than the ZX-81 - if you can use the term "better" about a machine that has less computing power than today's average shaver :-)
The main advantage of this machine was the "ghost" and "car" keys... It gave the games an unreal feel of reality, hehe!


ShareThis


 

https://www.youtube.com/watch?v$lfiSz_ZcCFw

          
Friday 6th May 2016
Ronald (Denmark)

You can find high quality scans and pictures of the Marathon here: http://www.zonadepruebas.com/viewtopic.php?f$40$t$3953

          
Wednesday 17th June 2015
Robcfg (Spain)
Zona de Pruebas

It was possible to install different ROMs into the lambda to gain better ZX81 compatibility. I have made a multirom-board which can be seen here:

http://www.youtube.com/watch?v$lH8igenBmuY$feature$watch_response

          
Monday 26th November 2012
Sascha2000 (Germany)
Eightbits

 

NAME  PC 8300
MANUFACTURER  Lambda Electronics Ltd
TYPE  Home Computer
ORIGIN  Hong Kong
YEAR  1983
BUILT IN LANGUAGE  Basic
KEYBOARD  Flat membrane rubber keyboard, 42 keys, QWERTY
CPU  NEC D780C-1 (Z80A clone)
SPEED  3,25 MHz
RAM  2 KB
ROM  8 KB
TEXT MODES  32 x 24
GRAPHIC MODES  64 x 48 (through semi-graphic symbols)
COLORS  Black & white
SOUND  1 voice sound generator
SIZE / WEIGHT  295 x 150 x 55 mm / 700 gr
I/O PORTS  DC Power in, Tape interface (EAR & MIC), Composite video output, RF TV video output, expansion bus, joystick connector
POWER SUPPLY  External power supply (12v) - -(o- +
PERIPHERALS  16 KB & 32 KB RAM memory upgrades, Color Kit expansion, joystick, printer
PRICE  $29.95 (USA, 198x)


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