Member Only Archive
Table of contents
- K.I.T.T. scanner - we let you in on the secret behind one of TV's special effects of the moment
- AXL amplifier - class A, B or AB
- pH meter - acidity/alkalinity measurement by LCD
- speech for microcomputers - phoneme synthesizer with Centronics input
- turnout (points) control - with or without a computer
- new keyboard for Spectrum - makes programming easier
- 19 kHz precision calibrator - a simple test-instrument calibration aid
- versatile counter circuit - upwards or downwards, for LED or LCD, for common-cathode or common-anode
- darkness-sensitive light switch - to frighten off would-be burglars
- mini active loudspeaker - good sound reproduction at low cost
- transistor unitester - a universal all-in-one transistor connection tester