TF Services

Sinclair QL support

Tony Firshman's Home Page

January 12, 2012

This page holds details of/links to current TF Services products and services, and latest support files.

Hosted on my own server based at BlueSquare in Maidenhead

All .htm files are in the root, so save pages locally and read off-line.

I passed on my QL spares to Rich Mellor early 2009 (RWAP Services). I can still provide all my products except RomDisq. However I have very little time to do this, so contact me first about delivery times. I can also do QL repairs and offer general QL advice.

    Prices and how to order: UK Europe Rest of world  (QL membranes no longer on sale)

Photos from the shows (30 Oct 05)
DABS.COM (03 Dec 02) - A Cautionary Tale
COMPSWITCH (30 Jan 03) - An autoswitch for computer peripherals. Switch off all peripherals when the computer switches off. Available now.
MPLANE (11 Sep 02) - New low profile backplane with a ROM port
RomDisq (28 Apr 05) - a rom card giving 2,4 or 8mbyte flash memory for the QL or Aurora rom slot. (NEW driver 2.14 for download - replaces 2.13L).
Users of version 2.10 and earlier must upgrade.
RomDisq upgrade notes (22 Nov 02)
superHermes (6 Mar 03) - a hardware add-on giving industry standard fast serial port, IBM AT keyboard interface, serial mouse support and much more
Hermes (11 Sep 02) - a replacement co-processor providing fully working ser1/2 and more
Minerva (12 May 04) - a replacement operating system for the Sinclair QL
Philips I²C interfaces (11 Sep 02) Look in this link for temperature sensors, power driver interface and relays, and LEGO interface.
Spares for the Sinclair QL
Sinclair QL repairs
Computer Cleaner mains filter
QBBS - QL fido BBS 2:252/67.0 - now retired (24 Jan 12)
QBBS Files list (31857 bytes) (1 Nov 00).
Z88 Internal Memory Expansion (11 Sep 02)
QL files for download (8 Apr 04) - new stripper2 conversion program

QL Repairs

Fixed prices repairs for £35 with 6-month guarantee - UK only. (Excludes microdrive repairs other than cleaning/adjustment) I use a Thorn-EMI test program to test the majority of the QL, including the network, serial ports, keyboard, microdrives, screen display, ram etc.

Remember that the QL has a power supply. Quite often odd crashes (especially if the QL crashes, may be be due to a faulty supply (often simply loose screws in the mains plug)

Look in troubleshooting (19 Apr 98) for more hints

Computer Cleaner Mains filters

The original mains filter introduced in 1985 for the Sinclair QL, but suitable for all computers and mains sensitive equipment (HiFi etc). Incorporates series in-line inductance on L/N, 3 spike filters (L/N, L/E, N/E), delta capacitor (L/N/ E). L/N capacitor boosted to over 300nF.
Two variants:

4-way trailing socket (13 amp)
3-way adaptor (5 amp)

Prices: UK

I accept sterling cheques drawn on a UK branch of a bank (ie UK cheque, International Money Order etc), Post Office Giro transfer (58 267 3909) or cash! ((Eurocheques no longer valid).

I no longer accept credit cards. All UK banks now require electronic transfer. This mean a) I pay £600 for a machine for 3 years use and no prices for upgrades or b) I pay £15 plus per month rental for a machine. ie Banks are putting up two fingers to small traders.

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    email Tony Firshman (edit in name)  TF Services
 Voice: (+44)1442 828254  Fax: (+44)1442 828255
  29 Longfield Road, TRING, Herts, HP23 4DG
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