AN6884 - VU Led Level meter for amplifiers
AN6884 - VU Led Level meter for amplifiers circuit The basic component is the complete AN6884 by Panasonic. The AN6884 is a monolithic integrated circuit driving 5- LED and is capable of logarithmic (dB) bar graph display for input signal. Incorporating high gain rectification amp. Enable to apply AC (VU meter, etc.) / DC (signal meter, etc.) Level meter widely. The system operates...
It is small and compact stereo amplifier is powerful but can easily be used to replace your broken amplifier or new construction, or to make an active speaker, in all cases combined with a preamplifier. With remarkable features make it the true Hi-Fi amplifier.
Using only active component (the right and left channel) Philips TDA1521 monolithic integrated circuit, which contains a double line-end audio amplifier completely independent, each capable of providing from 10 to 12 W to the load 8 ohm or 15 W into 4 ohms (30 W music). Voltage gains of the amplifier is fixed at 30 dB.
Actrk 400/600 Watt
Two versions of a robust module capable of delivering high powwer for extended periods. The Actrk400 uses 6 n-channel Mosfets in the output stage to deliver around 400 watts into 4 ohms while the Actrk600 uses 12 n-channel Mosfets in the output stage to deliver power in excess of 600 watts into 4 ohms. One constructor has achieved almost 900 watts with the Actrk600 layout using 12 IRFP460 Mosfets.
Actrk 600W schematic