Earning 3points for this item
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A circuit that produces a natural sounding bark with a sensitive 'ear' to everything that comes near it.ﾠ It is a faithful watchdog, which never sleeps and never has to be taken for a walk.ﾠ Technical specifications - Very realistic simulation through the use of a random generator - Choice of two different dogs - Reacts to environment noise, with adjustable sensitivity - Trigger input to connect other detectors (photo-electric cell, motion detector, smoke detector, etc...) - Loudspeaker output (2W at 4 ohm) - Connectable to more powerful amplifier - Complete with rectifier and voltage regulator - Power supply : 2x8V/0,5A transformer or 9 to 12VDC - Supply current: standby : 75mA (when barking : max. 400mA ) - Dimensions : 142 x 75 x 30mm Suitable housing:ﾠWCAH2851 Hints - If bark frequency is to low (very slow bark) reduce the value of C3 (ex. 1500pF) - If microphone is to sensitive, lower the value of R20 and increase the value of R2 - If there is a metallic background noise, put a 33pF capacitor from pin 7 of IC3 to ground |
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