Learning About Transistors and LEDs

An LED is the device shown above. Besides red, they can also be yellow, green and blue. The letters LED stand for Light Emitting Diode.

Making an Integrated Circuit

Depicts the step-by-step process by which the transistors of an integrated circuit are made.

Reed switches

A reed switch is a switch which is operated by a magnetic field. Two fine contacts are contained within a glass tube and spaced so that there is only a very small gap between them.

Regulated screen supplies

and protection for tetrode amplifiers

Regulator excels in noise and line rejection

certain electronic circuits require extremely low-noise power supplies and this circuit provides very good quality power output

Regulator generates sub-bandgap voltages

100-mA regulator that uses a dual linear-regulator IC to produce output voltages below 1.25V from 2.9 to 5.5V input-voltage range

Relekortti

PC parallel port relay card

Remote charging circuit uses three-wire sensing

remote voltage sensing usually uses a four-wire sensing system, this system works with three wires.

Remote two wire positioner

Send power to a remote stepper motor and control its rotation and speed over only two wires

Repair Memories