SNN.GR

Smart kit

1. Smart Kit

1. Alarms - Sirens
2. Amplifier
3. Automation
4. Cars And Bikes
5. Computer Application
6. Converters - Chargers
7. Dimmers
8. Instruments
9. Light Modulators
10. Linears - Encoders
11. Music
12. Power Supplies
13. Preamplifiers Mixers
14. Receivers
15. Sound
16. Sound Effects
17. Telephone
18. Timers Counters
19. Transmitters
20. Various
21. Vu - Meters

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1030 LIGHT DIMMER
1051 TOUCH DIMMER
1074 DRILL SPEED CONTROLLER
1134 AUTOMATIC DIMMER

1139

MINI DRILL SPEED CONTROLLER

SCHEMATIC

An easy to build stabilised special power supply for all the hand mini drills. A useful project that lets you adjust the speed of your mini drill according to the job at hand.The speed is not affected by the hardness of the material you drill.The output voltage and sensitivity can be adjusted by two potentiometers.The circuit is built around the well known regulator IC L200. Output voltage: 4-26VDC. Output current: 3-5A. V 20VAC T 20VAC/3A PCB 50x100mm