Active filter circuits are made using ne5532 opamps, there are 2 and 3 way versions (low pass, band pass, high pass) also there are formulas for opamp calculations and sample schematics, there are pcb drawings of all circuits, working voltages are +- 15v symmetrical.
Crossover, Active Audio Filter Circuits NE5532 Opamp
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Published: 2011/05/11 Tags: audio control circuits
Multi EEPROM Programmer Circuit
The computer’s serial port or lpt eeprom programming circuit running through a lot of useful supports model. Eeporm programming circuit between 7 …. 15v dc adapter can run with. I have not tried, but as computer software used prograg pony. Moreover, the circuit diagram pcb and dosyalarıda has been prepared by eagle.
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