Alfred Rosenkränzer (32)

| For the purposes of setting up CCTV surveillance systems I needed a small, mobile, battery-powered video test-card picture generator. In my...

| When dealing with radio-frequency signals, it often comes in handy to have an easy way to attenuate a signal level in discrete steps. For ex...

| Rapid digital signals are delivered differentially. Examples include HDMI, DVI, and USB. Are you looking to measure high-speed digital signa...

| If you feel like replacing the VHF-FM radio in your car with something more modern offering DAB+ reception too, you’ll discover that combina...

| If you’re looking to buy an oscilloscope for hobby purposes or for a small lab, these days you’ll find a wide selection of devices in a vari...

| Measuring high-speed digital signals with probes is prone to produce errors. The ground connection of the probe has special significance. If...

| Although active loudspeakers are more complex and more costly than passive loudspeakers, they have clear advantages in terms of audio techno...

| Guitar amplifiers using output devices such as the TDA7293 (100 W) or LM3886 (68 W) are surprisingly often damaged as a result of excessive...

| When experimenting with audio output stages featuring multiple HEXFETs it quickly becomes apparent that the total power is not divided equal...