Low noise pre tone control circuit using 4558 – NE55532
This is low noise tone control circuit using 4558 or NE55532, easy make with one PCB layout board, can adjust bass treble mid volume,also use to microphone.
1 Comment
August 14, 2017
Sound Activated Switch Circuit with PCB
This is Sound switch circuit,using IC-1458 and SCR-C106D It will work only if the loud is overdue,for player cameras, can apply to a Burglar alarm circuit
May 22, 2017
Simple NiMH NiCd Battery Charger circuit
Automatic nimh battery charger circuit that automatic cuts off. This project is good ways,Use AN4558 OP-AMP IC. Detect battery voltage when power is full.
May 2, 2017
Basic pulse generator using op amp IC-4558
This is a sample pulse generator using op amp. We often use 555 timer to build a simple pulse generator. The op amp is also easy in oscillator form. More!
January 16, 2017
Cheap car subwoofer filter circuits
This car subwoofer circuit set Suitable for use with a great car audio system. Since this circuit is designed to operate with a 12 volt DC power.
October 1, 2012
- 1
- 2