2SC1815

TOSHIBA Transistor Silicon NPN Epitaxial Type (PCT process)
2SC1815

Audio Frequency General Purpose Amplifier Applications
Driver Stage Amplifier Applications

 High voltage and high current: VCEO = 50 V (min
IC = 150 mA (max
Excellent hFE linearity : hFE (2) = 100 (typ.)
at VCE = 6 V, IC = 150 m
: hFE (IC = 0.1 mA)/hFE (I
= 0.95 (typ.)
Low noise: NF = 1dB (typ.) at f = 1 kHz
 Complementary to 2SA1015 (O, Y, GR class)

 Click here to view datasheet

2SC5200

TOSHIBA Transistor Silicon NPN Triple Diffused Type
2SC5200
Power Amplifier Applications 
  
• High breakdown voltage: VCEO = 230 V (min)
• Complementary to 2SA1943
• Suitable for use in 100-W high fidelity audio amplifier’s output stage



Click here to view datasheet

  

2sc2625

TRIPLE DIFFUSED PLANER TYPE HIGH VOLTAGE HIGH SPEED SWITCHING

POWER TRANSISTORS(10A,400V,80W)

2SC2625

APPLICATIONS

Switching regulators

Ultrasonic generators

High frequency inverters

General purpose power amplifiers

Click here to view datasheet 

2SC5411

TOSHIBA TRANSISTOR SILICON NPN TRIPLE DIFFUSED MESA TYPE

2SC5411

NPN TRIPLE DIFFUSED MESA TYPE (HORIZONTAL DEFLECTION OUTPUT FOR MEDIUM RESOLUTION DISPLAY, COLOR TV. HIGH SPEED SWITCHING APPLICATIONS

High Voltage : VCBO = 1500 V 

Low Saturation Voltage : VCE (sat) = 3 V - max

(High Speed : tf = 0.15 µs (Typ

Collector Metal (Fin) is Fully Covered with Mold Resin

Click here to view datasheet 

2SC5926

Power Transistors  2sc5926 

Silicon NPN triple diffusion planar type

For power amplification

                                                            : Features

 High forward current transfer ratio hFE which has satisfactory linearity.
• Low collector-emitter saturation voltage VCE(sat)
• Allowing supply with the radial taping

Download pdf 

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2SC5926 datasheet, 2SC5926 pdf, 2SC5926 data sheet, datasheet, data sheet, pdf, Panasonic, Power Device - Power Transistors 

Power Amplifier with 2N3055

Simple and low cost. The optimal supply voltage is around 50V, but this amp work from 30 to 60V. The maximal input voltage is around 0.8 – 1V. As you can see, in this design the components have a big tolerance, so you can build it almost of the components, which you find at home. The and transistors can be any NPN type power transistor, but do not use Darlington types… The output power is around 60W.




Some comments:

- capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequncies are getting louder.

– capacitor C2 regulates the higher frequencies (treble), as the capacitance grows, the higher frequencies are getting quiter.

– this is a class B amplifier, this means, that a current must flow through the end transistors, even if there is no signal on the input. This current can be regulated with the 500? trimmer resistor. As this current incrases, the sound of the amplifier gets better, but the end transistors are more heating. But if this current decrases, the transistors are not heating so much, but the sound gets worse…

copy from : http://www.electronics-lab.com/projects/audio/042/index.html

12V LED Flasher for Cars

This is so wonderful circuit diagram Because you can up grade the out look of you car or van by using this simple circuit .Actually this is a blinking Led circuit on the other hand this circuit is called multivibrator circuit.The impotent thing of this circuit is this circuit can be operated with 12V power supply


source : http://freecircuitdiagrams4u.blogspot.com/2010/07/12v-led-flasher-for-cars.html