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Learning About Transistors and LEDs

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.

http://www.iguanalabs.com/1stled.htm

Making an Integrated Circuit

Making an Integrated Circuit

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

http://www.virlab.virginia.edu/VL/Semiconductor_science/IC_process/IC_process.htm

Reed switches

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.

http://www.4qdtec.com/comps/reeds.html

Regulated screen supplies

Regulated screen supplies

and protection for tetrode amplifiers

http://www.mrs.bt.co.uk/dubus/9003-5.pdf

Regulator excels in noise and line rejection

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

http://www.edn.com/archives/1997/010297/01di_03.htm

Regulator generates sub-bandgap voltages

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

http://www.edn.com/archives/1997/010297/01di_05.htm

Relekortti

Relekortti

PC parallel port relay card

http://www.tuug.fi/~isaarine/electronics/rele/

Remote charging circuit uses three-wire sensing

Remote charging circuit uses three-wire sensing

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

http://www.edn.com/archives/1995/052595/11di2.htm

Remote two wire positioner

Remote two wire positioner

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

http://www.glolab.com./freeinfo/positioner2w.pdf

Repair Memories

Repair Memories

http://octopus.freeyellow.com/memories.html


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