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Articles from ElectroMaster

  1. ElectroMaster

    Audio Notch Filter

    At first glance this circuit looks fairly complex, but when broken down,can be divided into high pa
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  2. ElectroMaster

    FM Transmitter (#1)

    This circuit is a simple two transistor (2N2222) FM transmitter. No license is required for this tr
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  3. ElectroMaster

    1.5 Volt Tracking Transmitter

    The current draw for this tracker is 3.7mA, so the 1.5V button cell will last awhile. What the heck
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  4. ElectroMaster

    FM Transmitter (#2)

    The FM Room Bug is a neat project that can be built for under $10. It is an electronic transmitter
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  5. ElectroMaster

    Strobe Light

    Strobe lights are widely used by disco lovers to create wonderful visual effects in disco halls and
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  6. ElectroMaster

    5 Zone Alarm System

    Each zone uses a normally closed contact. These can be micro switches or standard alarm contacts (u
    0/5, 0 votes
    Updated:
    Jul 6, 2010
  7. ElectroMaster

    Miniature Loop Alarm

    A few months ago, I decided to build a compact, yet effective alarm. My demands were:- simple const
    0/5, 0 votes
    Updated:
    Jul 5, 2010
  8. ElectroMaster

    Triac light bulb flasher

    This 800 W light bulb flasher operates directly off the line and needs no transformer. Power for th
    0/5, 0 votes
    Updated:
    Jul 5, 2010
  9. ElectroMaster

    Garage Door Hacker

    This is the instructions and schematic for a garage door hacker. It modifies an existing door opene
    0/5, 0 votes
    Updated:
    Jul 5, 2010
  10. ElectroMaster

    DC Motor Control Circuit

    Here, S1 and S2 are normally open , push to close, press button switches. The diodes can be red or
    0/5, 0 votes
    Updated:
    Jan 4, 2010
  11. ElectroMaster

    The Breadboard

    [b]Introduction[/b] When building a permanent circuit the components can be grown together (as in
    0/5, 0 votes
    Updated:
    Jan 3, 2010
  12. ElectroMaster

    The Oscilloscope

    The oscilloscope is basically a graph-displaying device - it draws a graph of an electrical signal.
    0/5, 0 votes
    Updated:
    Jan 3, 2010
  13. ElectroMaster

    Magnets and Electromagnets

    Magnets and electromagnets have many uses, every electric motor, generator or transformer requires
    0/5, 0 votes
    Updated:
    Jan 3, 2010
  14. ElectroMaster

    Voltage

    The electric pressure that must be applied to cause electron movement is called voltage. When such
    0/5, 0 votes
    Updated:
    Jan 3, 2010
  15. ElectroMaster

    Current and Conductivity

    A current flow path is provided by wires or other metals and thus form conductors of electricity. T
    0/5, 0 votes
    Updated:
    Jan 3, 2010
  16. ElectroMaster

    Transistor Operation

    The transistor is the one device most responsible for the advances in the field of electronics. Due
    0/5, 0 votes
    Updated:
    Jan 3, 2010