Benjie
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- Words: 311
- Pages: 2
I.
Introduction:
The reason why I choose this gadget is because it is good. Not expensive and it easy to construct for me.
II. Materials: SEMICONDUCTORS: Q1 – NB121E, PNP 0.6W 35V 100MHz 0.1A Driver (TO-92) Q2 – 9013, NPN 0.625W 25V 0.8A Audio Power (TO-92) Q3 – NB111E, 0.6W 35V 100MHz 0.1A Drivers (TO-92) Q4 – 2N6121, NPN 40W 45V 2.5MHz 4A (TO-220) Q5 – 2N6124, PNP 40W 45V 2.5MHz 4A (TO-220) RESISTORS: (ALL ARE ¼ WATT ±5% TOLERANCE, CARBON FILM TYPE UNLESS OTHERWISE SPECIFIED). R1, R4 R2 R3 R5 R6 R7, R9
- 47 Kilohms - 15 Kilohms - 120 Kilohms - 56 Ohms - 180 Kilohms - 330 Ohms
R8 R10, R12 R11 R13, R14 R15
CAPACITORS: C1, C8 C2 C3 C4,C5 C6 C7
-
0.1 µF/25V Ceramic 100 pF Ceramic 220 µF/10V Elect. 220 µF.25V Elect. 330 pF Ceramic 1000 µF/25V Elect.
MISCELLANEOUS: Shielded Wire – /H1 or 2+1 PCB – 2x4” Heatsink – 1” Mica Insulator
- 1.8 Kilohms - 270 Ohms - 120 Ohms - 0.5 Ohm 1 Watt - 2.2 Ohms, ½ watt
III. Steps/Procedure: 1. Connect the sound operated switch corresponding power supply terminals to the 12-Volt DC power supply chosen. 2. Shout directly in front of the FET microphone, simultaneously observing any click from the relay. 3. Observe the position of the relay contact. 4. Shout again in front of the FET microphone and observe where the relay contact now rests. Normally the relay’s moving contact alternaly moves to and fro with each shouting. 5. Adjust trimmer resistor/potentiometer R1 to set the desired sensitivity of the Sound Operated Switch.
IV. Conclusion: Making of project. Like amplifier, although it’s not expensive but usually uneasy. There for I conclude that. By constructing of device or gadget. My future reflex. More effort lot of trial but in the end when we success there is happiness.
Introduction:
The reason why I choose this gadget is because it is good. Not expensive and it easy to construct for me.
II. Materials: SEMICONDUCTORS: Q1 – NB121E, PNP 0.6W 35V 100MHz 0.1A Driver (TO-92) Q2 – 9013, NPN 0.625W 25V 0.8A Audio Power (TO-92) Q3 – NB111E, 0.6W 35V 100MHz 0.1A Drivers (TO-92) Q4 – 2N6121, NPN 40W 45V 2.5MHz 4A (TO-220) Q5 – 2N6124, PNP 40W 45V 2.5MHz 4A (TO-220) RESISTORS: (ALL ARE ¼ WATT ±5% TOLERANCE, CARBON FILM TYPE UNLESS OTHERWISE SPECIFIED). R1, R4 R2 R3 R5 R6 R7, R9
- 47 Kilohms - 15 Kilohms - 120 Kilohms - 56 Ohms - 180 Kilohms - 330 Ohms
R8 R10, R12 R11 R13, R14 R15
CAPACITORS: C1, C8 C2 C3 C4,C5 C6 C7
-
0.1 µF/25V Ceramic 100 pF Ceramic 220 µF/10V Elect. 220 µF.25V Elect. 330 pF Ceramic 1000 µF/25V Elect.
MISCELLANEOUS: Shielded Wire – /H1 or 2+1 PCB – 2x4” Heatsink – 1” Mica Insulator
- 1.8 Kilohms - 270 Ohms - 120 Ohms - 0.5 Ohm 1 Watt - 2.2 Ohms, ½ watt
III. Steps/Procedure: 1. Connect the sound operated switch corresponding power supply terminals to the 12-Volt DC power supply chosen. 2. Shout directly in front of the FET microphone, simultaneously observing any click from the relay. 3. Observe the position of the relay contact. 4. Shout again in front of the FET microphone and observe where the relay contact now rests. Normally the relay’s moving contact alternaly moves to and fro with each shouting. 5. Adjust trimmer resistor/potentiometer R1 to set the desired sensitivity of the Sound Operated Switch.
IV. Conclusion: Making of project. Like amplifier, although it’s not expensive but usually uneasy. There for I conclude that. By constructing of device or gadget. My future reflex. More effort lot of trial but in the end when we success there is happiness.
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Benjie
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