| Since the proposed circuit makes use of the Centronics interface, it is suitable for virtually all types of computer: even older types wi...
D. Lorenz (3)
| Running a bath can end in a minor domestic disaster if you forget to turn off the taps in time. The indicator presented here actuates an...
| The fluid level indicator may be used, for instance, in the fresh water tank on board yachts, or in mobile homes or caravans.