Features & Specifications SPECIFICATIONS: For use in homechime, call systems, games or discobars. One, two or three tones triggered by 3 different push buttons. Adjustable tone and volume control. Peak output power: 0.3W (8 Ohm speaker). Power Supply: 6 to 9VAC/0.2A or 4.5V battery (3 x 1.5V). Standby current: less than 10µ...
Assembly hints 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully. 1.1 Make sure you have the right tools: • A good quality soldering iron (25-40W) with a small tip.
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3- Trim excess leads as close as possible to the solder joint REMOVE THEM FROM THE TAPE ONE AT A TIME ! AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE ! You will find the color code for the resistances and the LEDs on our website: http://www.velleman.be/common/service.aspx...
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Construction 9. Electrolytic Capacitors. 7. Transistors Watch the polarity ! T1 : BC337 or eq : 10µ F C... : 470µ F : 470µ F 8. PCB pins 10. IC mounting IC1 : SAE800 Pay attention to the position of the notch!
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Connection 11. Connection of battery as supply...
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Connection 12. Connection of transformer as supply...
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Connection 13. Connecting a transformer and backup battery supply...
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