SPARES / REPAIR ITEM!!!
SINCLAIR QL MEMORY INTERFACE CARD - QUEST 64KB MEMORY EXPANSION - QUEST INTERNATIONAL COMPUTER TECHNOLOGY LTD 1984
Extremely Rare early range of interfaces released for the Sinclair QL.
This is an Issue A board, the first release by this 3rd party company.
Very collectible. For full condition - see photos & read below.
This item has been fully cleaned & tested. It does boot up to home screen but on checking memory available it only gives the internal 128kb so no extra memory coming from the interface. Being sold as spares/repair item. This is a possible chip error!!!
There are a few scuffs on the disc capacitor & chip casings / there are some scuff marks on the back of the board but all traces are intact.
Each item is carefully packaged and will reach you quickly. Will post worldwide. See our postage options above.
EXTRA INFO FROM QL WIKI#
Quest Memory Expansion
The Quest Memory Expansion was an early range of rather large memory expansion cards from a company called Quest International Computer Technology Ltd. (otherwise known as Quest Automation Ltd).
The company released various versions, 64K, 128K, 256K and 512K extra memory. However, these were the slowest memory expansion units ever made for the QL, based on 4164 RAM chips, running at the same speed as internal RAM - less than one megabyte per second - despite the lack of contention from video access.
This made them half the speed of the fastest 8-bit expansions, such as the CST RAMPlus, the early SuperQBoard and later Trump Card.
Prices were :
64K RAM: £115
128K RAM: £185
256K RAM: £349
512K RAM: £579
The boards measured 247mm x 97mm and were supplied in a large plastic casing. The 512K unit also required a separate power supply.
A ram disk was also provided with the memory interfaces, although this was supplied on separate microdrive cartridge.