TF Services

Sinclair QL support

Tony Firshman's Home Page

December 17, 2007

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

Hosted on my own server at Tring via ADSL - now 764kbit out, 4mbit in.

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

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

Fill in this form to get on my QL mailing list Nice as well to know who calls......

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 (2 Mar 03)
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 (Many more QL programs on QBBS bulletin board - +44(0)1442-828255)

Spares for the QL

I have majority of QL parts available. However, other than keyboard problems, diagnosing QL faults is not necessarily straightforward. If you are not sure of what you are doing then I offer a QL repair service.

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

QL Repairs

Fixed prices repairs for £27 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) (only two in two way adaptor), delta capacitor (L/N/ E). L/N capacitor boosted to over 300nF (not 2 way). Three variants:

    4-way trailing socket (13 amp)
     3-way adaptor (5 amp)
   2-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.

Dilwyn Jones QL Web Site: QL information and software to download

Peta Jaeger's homepage - lots of software

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 QBBS (QL fido BBS 2:257/67)  (+44)1442-828255
   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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