Elenco Electronics Snap Circuits - Snap Circuits Component Details

-3-
(Part designs are subject to change without notice).
The FM module (FM) contains an integrated FM radio circuit.
Refer to the figure below for the pinout description:
The meter (M2) The meter is a very important indicating and
measuring device. You’ll use it to measure the amount of current
or voltage depending on the circuit configuration. Notice the meter
has + sign, indicating the positive terminal (+ power from the
batteries). The other snap is the negative terminal (- power return
to batteries).
The recording IC module (U6) contains an integrated recording
circuit. You can record a message up to eight seconds long.
There are also three pre-recorded songs. Refer to the figure below
for the pinout descriptions:
The relay (S3) is an electronic switch with contacts that can be
closed or opened. It contains a coil that generates a magnetic field
when current flows through it. The magnetic field attracts an iron
armature, which switches the contacts (see figure).
The transformer (T1) consists of two coils windings on one core.
One coil is called the Primary (input) and other the Secondary
(output). The purpose of the transformer is to increase the amount
of AC voltage applied to the primary. This transformer is a step-up
transformer. The secondary has more windings than the primary.
Diode (D3) - You can think of a diode as a one-way valve that
permits current flow in the direction of the arrow. The anode
(arrow) is the positive side, and the cathode (bar) is the negative.
The diode conducts or turns on when the voltage at the anode is
0.7V or greater.
MORE About Your New Snap Circuits Parts (Note: There is additional information in your other project manuals).
(+)
OUT
(–)
FM Module:
(+) - power from batteries
(–) - power return to batteries
T - tune up
R - reset
OUT - output connection
See project 307 for example of
proper connections.
(+)
OUT
(–)
Recording IC Module:
(+) - power from batteries
(–) - power return to batteries
RC - record
Play - play
OUT - output connection
Mic + - microphone input
Mic – - microphone input
See project 308 for example of
proper connections.
RCPlay
Mic –
Mic +
COM
Relay:
Coil - connection to coil
Coil - connection to coil
NC - normally closed contact
NO - normally open contact
COM - Common
See project 341 for example of
proper connections.
Coil
Coil
NO
NC
S
CT
S
Transformer:
P - primary (input)
P - primary (input)
S - secondary (output)
S - secondary (output)
CT - center tap
See project 347 for example of
proper connections.
P
P
Anode
Diode:
Anode - (+)
Cathode - (–)
Cathode
(+)
(–)
Meter:
(+) - power from batteries
(–) - power return to batteries