Parametric Kojak siren
Simple kojak siren with wide possibilities adjustings. Has been realized very old 1989. years. Complex is suitable for the amateur realization. Possibly adapts the central height ton, volume modulations of height of tone also the separate time for the growth ton and for the falling ton. In this way possibly simple get the satisfactory sound siren. Exactly possibly e.g. will adjust:Exactly possibly e.g. will adjust: slowly howling, or e.g. fast howling siren.
Power supply: 12V=
Protection from reversal connectings of power supplies
Output: loudspeaker 4R / 25W or 8R / 15W
Protection from the short-circuiting of output.
Price of finished complex (without box): 200 HRK (26 euro)