Betzold 89211 Mode D'emploi page 47

4. Use of an Alarm-IC with different Sounds
A: With loudspeaker
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118. Sound-operated doorbell with slow, rhythmical music – 2 –
Connect the sound transducer (11) to the points B and C. When the
sound stops, clap your hands and the loudspeaker (20) allows the
slow, rhythmical music to play.
119. Hand-operated doorbell with slow, rhythmical music – 1 –
Connect the pressure switch (14) to the points A and B. Press the
pressure switch (14) and the loudspeaker (20) allows the slow,
rhythmical music to play.
120. Hand-operated doorbell with slow, rhythmical music – 2 –
Connect the pressure switch (14) to the points B and C. Press the
pressure switch (14) and the loudspeaker (20) allows the slow,
rhythmical music to play.
121. Hand-operated doorbell with slow, rhythmical music – 3 –
Connect the pressure switch (14) to the points D and E. Press the
pressure switch (14) and the loudspeaker (20) allows the slow,
rhythmical music to play.
122. – 128. Vibration, sound and hand-operated doorbell with variable
music speed
On the basis of the doorbell treatment above with slow, rhythmical
music, you will notice that the rhythm of this music becomes faster
when you approach the reed switch (13) with a magnet.
129. Sound of a police siren
Close the slide switch (15), the loudspeaker gives out the sound of a
police siren.
130. Sound of thunder
Connect the points E and F, the loudspeaker gives out the sound of
thunder.
131. Sound of the fire brigade
Connect the points A and B, the loudspeaker gives out the sound of
the fire brigade.
132. Sound of an ambulance
Connect the points B and G, the loudspeaker gives out the sound of
an ambulance.
133. Sound of the exhaustion of air
Connect the points B and G and the points F and H. The
loudspeaker (20) produces the rhythmical sound of the exhausting of
air.
134. Sound of vibration
Connect the points B and F, the loudspeaker (20) makes a varying
vibration sound.
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© Arnulf Betzold GmbH