Capacitors Tutorial

The circuit below is similar to the one above but can be used with a laser pointer to toggle the...

Whether the tuning aid can be trusted on 70 MHz is a bit of a complex matter, but wtih me it...

The use of optical filters to reduce/remove light from other sources. If a fairly narrowband...

With this circuit you can power-ON or Power-OFF a lot of electric/electronic devices such as aDSL...

The OP07 is in a non inverting amplifier so as not load the mV of thermocouple, the zeners are to...

This design adopts a well established circuit topology for the power amplifier, using a...

Two KOSS A-1220 headphone amps. Each share the same model number, yet have completely different...

U1a operates as a low-noise microphone preamp. Its gain is only about 3. 9 because the high...

There is also a version without SMD. This version is called 2. 1, slightly larger (80 * 100 mm)...

The telemetric physiologic monitors transmit measurements of bodily functions from beneath the...

The Quick and Easy Wireless circuit is not terribly difficult however it will take some double...

It is sometimes necessary to monitor a device that generates a relatively short pulse to indicate...

Circuit for the principle: The alarm circuit consists of two parts, the transmitter and...