Mechanical Affinity

513 East Main St., Peru, IN 46970

Supplier of Timex/Sinclair hardware and software. Run by Frank Davis and Paul Holmgren. The company had two addresses, one in Peru, Indiana (Davis) and one in Indianapolis (Holmgren), about 70 miles apart. Holmgren eventually left the business and Davis continued as FWD Computing.

Products

Improved ROM for TS1000

Debugged/improved LPRINT, CLS, SCROLL, DIM and more. Full display file, SCROLL/CLS work properly, LPRINT small numbers (.0001), DIM very large single strings (DIM A$(47000)) in 64K and a few other changes incorporated. For the 16K TS1000, TS1500 or ZX81.

ZX81 TS 1000 TS 1500

Internal battery backed clock for QL

Uses lithium battery, good for far longer than ordinary batteries. Plugs in to 8049 socket, and 8049 is installed in it.

Keytops for QL

Use to replace broken or missing key or whole set. Not available directly from Sinclair; this was available from third-party vendors.

QL case

Contains keys and bare motherboard. Not available directly from Sinclair; this was available from third-party vendors.

QL Internal ROM Board

Allows you to put your favorite ROM version (JM , JS, JSU, MGUS, MGUK , etc.) on an EPROM. This will lower power consumption by the QL by about 20% & drop the internal heat by close to 50 degrees Fahrenheit.

QL keyboard membrane

QL Power Supply

Replacement power supply. Not available directly from Sinclair; this was available from third-party vendors.

Spectrum B ROMs

On EPROM, bug corrected with additional character set.

TS 2068

Speedscreen

ROM for ROMport.

TS2068 Dock EPROM Boards

Can be used for TS2068 program on EPROM, configured for use as non-volatile memory (32K to 128K), or as RAM disk.

TS 2068