Pioneer 300W amplifier circuit is working with symmetric 45v DC +-power transistors MJ15003, the NPN transistors, can be used in all MJ11016 2N3773 4 ohm speaker with 300 Watts of power. Driver card schema, pcb drawings and proteus isis simulation power transistors have cooler connects to the drive through.
Source: forosdeelectronica.com/f31/amplificador-300-watts-desconocido-16313/ alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-19596.zip
Cmos Oscillator With Music Box Circuit
Before drawing a picture with music box and tapping the LM386 NE555 music do I shared this very nice application and similar projects in the writings of the author of the first version of the circuit is very nice work, especially a great boxing made him the music box CD4017 and based on cmos integrated circuits CD4093 audio signal is given out if the speaker on a variety of rhythm is set up with LM386 gradients with music being made.
Cmos Oscillator With Music Box circuit
Pioneer 300W Verstärkerschaltung
Pioneer 300W Verstärkerschaltung arbeitet mit symmetrischen 45V DC + -Power-Transistoren MJ15003, die NPN-Transistoren, können in allen MJ11016 2N3773 4 Ohm-Lautsprecher mit 300 Watt Leistung verwendet werden. Das Treiberkartenschema, die PCB-Zeichnungen und die Proteus Isis-Simulations-Leistungstransistoren haben Kühler, die mit dem Laufwerk verbunden sind.