Project #328, Scr 6v bulb project #327, Meter deflect by motor – Elenco Upgrade Kit SC100 to SC750 User Manual
Page 93
-16-
Project #328
OBJECTIVE: To learn the principle of an SCR.
In this circuit, the 6-volt bulb (L2) will not light until the SCR (Q3) is
triggered. Turn on the slide switch (S1) and the bulb will not light. Now
press the press switch (S2) to light the bulb. The bulb will stay lit until
the slide switch is turned off. To protect the SCR, a current limiting 1k
Ω
resistor (R2) is placed in series with the gate.
SCR 6V Bulb
Project #327
OBJECTIVE: To change the direction of current flow using a
motor.
Set the meter (M2) to the LOW (or 10mA) setting. A motor generates
a current when it rotates. The rotation of the motor determines the
direction current flows. Quickly spin the motor (M1) clockwise with
your hand; the meter deflects to the right. Now spin the motor
counterclockwise, and the meter deflects to the left.
Meter Deflect
by Motor
- Upgrade Kit SC100 to SC300 (76 pages)
- Snap Circuits Jr.® Educational 100 Exp. (48 pages)
- Upgrade Kit SC300 to SC500 (64 pages)
- Snap Rover ® (24 pages)
- XP&trade (64 pages)
- Snap Circuits LIGHT ® (84 pages)
- Snap Circuits Extreme® Educational 750 Exp. (88 pages)
- Projects PC1-PC73 (60 pages)
- Electronics 202 (132 pages)
- Snaptricity® (92 pages)
- Upgrade Kit SCROV10 to SCROV50 (48 pages)
- Snap Circuits Green ® (80 pages)
- C Adapter for Snap Circuits® (2 pages)
- Motion Detector Kit (20 pages)
- Digital Roulette Kit (16 pages)
- FM Wireless Microphone Kit (12 pages)
- AM Radio Kit (32 pages)
- AM Radio Kit (36 pages)
- AM/FM Radio Kit (64 pages)
- Circuit Maker Skill Builder 125 (64 pages)
- Circuit Maker Sound Plus 200 (80 pages)
- Understanding Logic Gates (16 pages)
- Understanding Logic Gates and Circuits (42 pages)
- Tumbling Robot (12 pages)
- Solar Energy (16 pages)
- C2D Scope (16 pages)
- 288x Astrolon Telescope with Aluminum Tripod (1 page)
- Simulated Frog Dissection Kit (1 page)
- Talking Galaxy Planetarium with Night Light (1 page)
- Night’n Day® (10 pages)
- Radio Controlled Black Widow (1 page)
- Handheld Microscope (2 pages)
- Water Filtration Kit (8 pages)
- 6-in-1 Solar Kit (18 pages)
- Microscope Set in Carrying Case (1 page)
- Mobile 20 Telescope (1 page)
- Mechanical Drum (20 pages)
- Aerial Screw (20 pages)
- Swing Bridge (20 pages)
- Printing Press (24 pages)
- MultiBarrel Cannon (20 pages)
- Armored Car (24 pages)
- Paddleboat (20 pages)
- SelfPropelled Cart (20 pages)
- Catapult (24 pages)