Kamil Kraus (6)

| Using just a few discrete components and two inverters, it is possible to build a simple TTL square wave frequency doubler for signals up to...

| The active filters in the two diagrams are intended for low-frequency application. Both are based on the relatively inexpensive, low-noi...

| This is a stand-alone application of a stripped-down version of the 80C32 single-board computer. The cost of making a BASIC version of th...

| This detector will help you find fairly large objects that consist of materials with a relatively high permeability.

| The constructian of a UHF amplifier frightens most people, unless they are expertenced radio/TV enthusiasts. They should, therefore, appr...

| For the reception of weak UHF-TV signals a good antenna is, of course, indispensable, but by itself it may not be enough. If that's the ca...