Sinclair Library

KAT Keyboard Audio Tone

Hardware: undetermined · 1 players

TV Services of Cambridge

MIA Missing in action. This is known to have existed, and no copy has ever been found. If you own one, the archives would like to hear from you.

Not rated yetSign in to rate it

Discussion

Nobody has started a thread about this yet.

Start a thread

In the magazines 1

Sinclair User #4Jul 1982 · p.48

Sinclair User

TV SERVICES BLEEPER TV Services of Cambridge has a neat little keyboard bleeper called the KAT keyboard audio tone. The device can be fitted inside the case in the space beneath the keyboard, or in any other place for that matter, as it is an extremely flat PCB and piezo-electric loudspeaker. There are only five soldering connections to make to the ZX-81 PCB, as the rest is ready-assembled. If that makes you nervous, the company will fit it to your ZX-81. The bleeper gives two tones, one when a key is pressed and one when the computer answers; it also signals the start and finish of a LOADing or SAVEing program. It may also be programmed to bleep in a program - for simulating an explosion - by using a PAUSE greater than 5. The KAT costs £8.95 if you fit it yourself and £10.95 if you send your ZX-81 for it to be fitted. TV Services of Cambridge Ltd, [redacted].

Reviews from people here

Sign in to write about this, or make an account. It takes a minute and lets you correct the catalogue too.

This entry50% complete

No year, description recorded.

Sign in to correct or add to this.

See what has changed about this entry

Share this entry

Hold the rights to this and want it taken down?