Showing posts with label ocl. Show all posts
Showing posts with label ocl. Show all posts
Wednesday, October 15, 2014
Build a 70 Watt OCL Amplifier Circuit Diagram
OCL power amplifier circuit used in the circuit above is the type of power amplifier OCL (Output Capacitor Less) with a power output of 70 Watt. Circuit 70 Watt power amplifier OCL is working on a class AB with symmetrical voltage source of VCC ± 25 volts DC to ± 32 volts DC. OCL power amplifier circuit uses a 70 watt power transistor complementary transistor TIP in 2955 and TIP 3055. 70 watt power amplifier in the circuit can be used to drive the load (4-16 Ohm loudspeaker). Power supply circuit power amplifier can use power supply circuit with current 5A symmetrical. For stereo audio system needs to make a power amplifier OCL circuit tone control + over 2 units.
70 Watt OCL Amplifier Circuit Diagram
70 Watt OCL Amplifier Circuit Diagram
Monday, August 25, 2014
OCL 150 Watt with 2N3055 and MJ2955
This is OCL 150 W mono audio amplifier circuit , with impedance 8 Ohms. The supply voltage using 25 volt DC with triple voltage + ,- ,ground. see below this circuit :
Buffer amplifier use PNP transistor is A564 / A733 /A1013 and NPN use D400 / D438. Driver Amplifier use NPN transistor is TIP31 / TIP41 / D401, and PNP transistor use TIP32 / TIP42 / B546. For the transistor booster or end , here I use a 2 x 20355 and MJ2955 . This anplifier is recomended to full range speakers. See pcb line and construction audio amplifier below :
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| Click to view larger |
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| PCB line |
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| Components are already installed |
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| The booster amplifier already installed. |
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