A. Rietjens (66)

| Designing a suitable LED display for a particular application can be time consuming. In particular, the decoder that sits between the dri...

| Digital clocks and timers are around us in a multitude of appearances, so it makes little sense these days to build one yourself. However,...

| This month we close the article with a description of the control software developed for the DiAV system. Also, we help you to test the ma...

| In the first two parts of this article we concentrated mainly on the system outline and the dissolve unit. This time, we tackle the constr...

| Cassette recorders like lTT's SL537 AV or SL837 AV, used by tape-slide producers, have a four-track head. A pulse circuit is connected to...

| After last month's introduction and the description of the dissolve unit and the projector, we are now ready to tackle the construction of...

| AV recorders used in audio-video presentations contain an additional head to read and write the control pulses for the slide projector. T...

| Those of you who have ever worked with flat cables will know that IDCs (insulation displacement connectors) are simple to use, and give r...

| Depending on the application of the 'Multifunction 280 card', a basic set of switches to control the program flow may be required. Also,...

| Timer chip ICM7250 from Maxim enables a very simple timer to be designed. The IC has eight programmable inputs for connectlng to, say, tw...