BK-0611

Siren KIT, 5VDC

Schematic diagram

Siren KIT A siren built from a 556 (double 555) timer that creates sound effects with varying pitches. The first oscillator influences the frequency of the second oscillator, thus producing a wavy square signal. Potentiometers can be used to control the characteristics of the generated sound. Input supply voltage: 5V DC Maximum current consumption: 20mA The set contains parts to be soldered! Add to basket (Part no.: 100.426.88) 1+: 545 Ft 5+: 377 Ft 10+: 353 Ft 20+: 342 Ft 50+: 336 Ft

Assembly diagram

Product picture

1

J

JUMPER

2

R1	4.7K 0,25W
R2	4.7K 0,25W
R3	56K 0,25W

3

C1

NE556

4

C3	10nF (103)
C4	10nF (103)

5

S

SPK

6

P1	200K
P2	200K

7

C1	100uF
C2	100uF

The supply voltage must be connected to the (+) and (-) points marked on the circuit. The polarity and actual voltage of the power supply must always be carefully checked before connecting to the circuit.
(+) = Positive supply voltage pole (usually red)
(-) = Negative supply voltage pole (usually black)