Advertisement
Audio power Amplifier Tester Dummy load – Circuit Schematic
Audio power Amplifier Tester Dummy load
If you want to test an amplifier may be a dummy sometimes convenient for speakers to use than the actual speakers, due to noise or damage to the speakers. Th...
10 LED VU meter LM3915 – Circuit Schematic
10 LED VU meter LM3915
This simple LED VU meter has only a few parts but is useful as an indicator for the noise. The circuit is built around an LM3915, the brother of the logarithmic...
Audio tone control circuit – Circuit Schematic
Audio tone control circuit
Here a simple design for an attractive tone. They operate on a passive principle, ie without amplification. The circuit only weakened and therefore require no p...
Bass and Tremble Controller ( 741 ) – Circuit Schematic
Bass and Tremble Controller ( 741 )
Again, using the versatile IC 741. The feedback of this IC are two T-filters included the strengthening of the treble and bass influence. P1 is responsible for ...
Programmable Sound Generator – Circuit Schematic
Programmable Sound Generator
The AY-3-8910/8912 is a register oriented Programmable Sound Generator (PSG). Communication between the processor and the PSG is based on the concept of memory-...
Acoustic Tone indicator – Circuit Schematic
Acoustic Tone indicator
With this circuit, we can have a acoustic clue, frequency 2KHZ, when we have a short vibration in his entry. It is constituted from monostable multivibritor (wi...
High-Pass 20HZ to 200HZ Filter – Circuit Schematic
High-Pass 20HZ to 200HZ Filter
A simple circuit, High-Pass filter, variable between frequencies 20HZ until 200HZ, useful in a lot of cases elaboration of sound signals. The regulation is achi...
Baby watch Intercom Circuit – Circuit Schematic
Baby watch Intercom Circuit
It's a very simple circuit, for the follow-up of baby. It can however be also used for other use, as intercom etc. In the place of M1 we can we use a simple ele...
Audio Stereo Mixer circuit – Circuit Schematic
Audio Stereo Mixer circuit
Most cards of sound in computer, are deprived stereo input for microphone, on the contrary have stereo input for high level [ Line ]. The circuit uses the input...
LED audio peak level – Circuit Schematic
LED audio peak level
A peak level indicator when a signal exceeds a certain maximum value. It can be quite useful, for instance, with tape recorders, mixing consoles etc. One of the...
VU meter circuit – Circuit Schematic
VU meter circuit
The circuit is placed parallel with the exit of power amplifier and us gives the level of signal ,from output. Changing resistance R1, in the input circuit, we ...
Vu Meter For Amplifiers – Circuit Schematic
Vu Meter For Amplifiers
One yet circuit with the known LM3915. It does not differ in a lot of points from other applications with same IC. The circuit accosted in those who they want a...
Active Crossover – Circuit Schematic
Active Crossover
The problems that exist in common crossover networks are known. The low-pass filter causes delay in the signal. On the contrary the high-pass filter causes be p...
Active Loudspeaker with Crossover II – Circuit Schematic
Active Loudspeaker with Crossover II
After the 2-way active loudspeaker circuit, give a complete electronic section circuit of one 3-way active loudspeaker. The speaker?s choice will become from yo...
Loudspeaker Protection 2 – Circuit Schematic
Loudspeaker Protection 2
The circuit protection output of power amplifiers and loudspeakers, dispose certain interesting elements, as the isolation of loudspeakers from the exit of ampl...
Stereo sound balancer – Circuit Schematic
Stereo sound balancer
It many times happens, we want erase or decrease in a musical song, the voice of singer or some other sound that usually is written in same level and in the two...
Surround Sound Decoder – Circuit Schematic
Surround Sound Decoder
The particular circuit does?t have the requirement to replace the trade decoders Surround, because this they have many more facilities and possibilities. It gi...
Loudspeaker Protection circuit – Circuit Schematic
Loudspeaker Protection circuit
The protection circuit output amplifiers and speakers, has some interesting features such as isolating the speaker from the amplifier output when shown a contin...
Siren circuit – Circuit Schematic
Siren circuit
With this circuit we can create a altered sound of siren. The oscillator IC1a-b is constituted by two gates NAND, oscillating in very low frequency. This oscill...
Stereo to Mono Converter – Circuit Schematic
Stereo to Mono Converter
This is a very useful circuit for those who want to transform a stereo Power Amplifier, to mono, bridging two channels from him , reversing the phase of the on...