Showing posts with label transformer. Show all posts
Showing posts with label transformer. Show all posts

Saturday, December 7, 2013

Classical audio power amplifier with IT and OT transformer

The circuit is devote to the radio receiver in which sound ( the gear ) is weak. With the help of this tool , which initially sounds as if far to be clearly audible. Power amplifier does not require much  electrical current source , because all components are not up to over 1 Mega . But the result was incredible because it can enhance the power of  catching the wave signal.

Troubleshooting :
Wether transistors placement is correct ?
Placement Elco ?
Check are cable .

If all components have benn checked , and the damaged has been replaced . Then try , turn the potentiometer slowly and listen to how the sound output by the speaker.
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Sunday, December 1, 2013

12 volt fluorescent lamp and transformer equipped

Valid schematic circuit diagrams of fluorescent lamps with a voltage source using 12 volt battery. This circuit 12 volt fluorescent lamp is very useful if the power goes out or can be used in a dark place with no electricity, but can use  the battery 12V. This 12V fluorescent lamp circuit i have tried and the results are bright, durable until decades. You can use 12Volt fluorescent lamps up to 40W. Use quality 12 Volt fluorescent lamp, do not use the fast heat, because the fast was also damage the transistor at 12Volt fluorescent lamp circuit . Do not occasionally mistaken in putting up the transistor .
Description for 12 volt fluorescent lamp Circuit Diagrams :

R1 = 220R/0.5W
R2 = 1/0.5W
C1 = 100n/100V
C2 = 220uF/50V
Q1 = D1885/D1710
A/B= To A fluorescent lamp/ and B to B fluorescent Lamp and just use one pin
B = Battery 12 volt with currents above 5A
Roll of copper wire on ferrite rod, with :
L1 = 1.2 mm diameter wire with many loops winding 20 times
L2 = 1.2mm diameter wire with many loops winding 20 times , and connected after the L1
L3 = 0.8mm diameter wire with many loops winding 500 times , connected after L2 and wrapped over L1 and L2.
F = Ferrite rod diameter of 10 mm
Number 1 - 4 in red will be connected to the winding.

This is transformator for 12 volt fluorescent Lamp
Installation fluorescent lamp with accu 12 V
Related Fluorescent Lamp Circuit : 3V Fluorescent Lamp
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