pre-amplifier

Audio filter output 20Hz to 20kHz for amplifier: This is the Audio filter output 20Hz to 20kHz for the amplifier. Every amplifier needs one audio graphic to control the sound quality. It starts at 20Hz, 25Hz, 30Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 350Hz, 400Hz, 510Hz, 630Hz, …

PCB LAYOUT MASTER STEREO PRE-AMPLIFIER: This is a PCB LAYOUT MASTER STEREO PRE-AMPLIFIER. Every amplifier needs this type of pre-amplifier to produce good sound. this circuit runs from 10-0-10 voltage to 18-0-18 voltage. it’s a stereo circuit diagram. Manufacturer = on semi The product Category is operational Amplifiers – Op …

Tone control circuit diagram using TDA1524A: This is a tone control circuit diagram using TDA1524A. This is an audio equalizer Tone Control TDA1524A. This circuit diagram can control the Base mid and tone. This circuit needs 12 voltages. we can use 12 to 15 voltage. this is a mono-circuit diagram. …

Audio equalizer Tone Control Ic 4558: This is an audio equalizer Tone Control Ic 4558. this circuit diagram can control High mid and low. This circuit needs dual voltage positive negative and ground voltage. we can use 12-0-12 voltage to 15-0-15 voltage. this is a mono-circuit diagram. Every amplifier needs …

Bass volume control circuit: This is a bass volume control circuit diagram for the amplifier. every amplifier needs this type of circuit to make a good sound. this diagram does not require any voltage. and it’s only for the Bass and the volume. it’s a simple diagram. it’s also a …

DIY bass tone circuit: This is a DIY bass tone circuit for the audio amplifier. this circuit makes the sound the best quality. every amplifier needs this type of circuit. this circuit needs 15+0+15 voltage.  Diagram  We have another post for you. like Stk 4101   repairing amplifier, transistor circuit diagram of 2sa1943 …

Pre-amplifier for bridge mode: This is a Pre-amplifier for bridge mode amplifier. this circuit needs to make the amplifier in bridge mode. when we need dual power in one channel, we have to use this circuit. left and right channel makes output together. that time no need for the ground. …

Fnord effect discord: This is a guitar Fnord effect discord circuit diagram. this circuit needs 9 voltages and 2 amperes. there is a switch to mute the sound. it’s a mono-circuit diagram. it’s also like pre-amplifier  Circuit diagram   We also can use another PNP and NPN transistor in this …

Guitar Effect circuit diagram: This is the Guitar Effect circuit diagram. this board is for guitar sound effects. It runs with 9 to 12 voltages. it’s also like a pre-amplifier. we can use 9 9-voltage battery for this board. it has 3 vol.  the component list      We have …

How to make bass tone: How to make a bass tone. this is the equalizer circuit for the amplifier. this circuit does not need any voltage to run. it’s a passive circuit. this circuit requires a pre-amplifier to make a good performance. it’s a mono-circuit diagram. if we need stereo, …