Showing posts with label tone. Show all posts
Showing posts with label tone. Show all posts
Friday, October 3, 2014
60 Watt Guitar Amplifier with Tone Control
The following is a circuit of amplifiers are equipped with the suitable regulatory tone in use to strengthen the electric guitar, employing a single-rail supply of regarding 60V and capacitor-coupling for the speaker . the benefits for a guitar amplifier are the terribly simple circuitry, even for comparatively high power outputs, and an explicit built-in degree of loudspeaker protection, owing to capacitor C8, preventing the voltage supply to be conveyed into loudspeakers in case of output transistors failure.
In all cases where Darlington transistors are used because the output devices it is essential that the sensing transistor (Q2) should be in as close thermal contact with the output transistors as potential. thus a TO126-case transistor sort was chosen for straightforward bolting on the heatsink, terribly near the output combine
R30 must be cut so as to live regarding half the voltage supply across the positive lead of C7 and ground. an improved setting is done using an oscilloscope, so as to get a symmetrical clipping of the output wave type at most output power
Note:
To set quiescent current, tide ampare meter in series between supplay with this series, then do the following
- Set the volume control to the minimum and Trimmer R3 to its minimum resistance.
- Power-on the circuit and adjust R3 to read a current drawing of about 30 to 35mA.
- Wait about 15 minutes, watch if the current is varying and readjust if necessary.
List component
R1,R2______________68K 1/4W Resistors
R3________________680K 1/4W Resistor
R4________________220K 1/4W Resistor
R5_________________33K 1/4W Resistor
R6,R16______________2K2 1/4W Resistors
R7__________________5K6 1/4W Resistor
R8,R21____________330R 1/4W Resistors
R9_________________47K 1/4W Resistor
R10_______________470R 1/4W Resistor
R11_________________4K7 1/4W Resistor
R12,R20____________10K 1/4W Resistors
R13_______________100R 1/4W Resistor
R14,R15____________47R 1/4W Resistors
R17,R18,R19_______100K 1/4W Resistors
R22__________________6K8 1W Resistor
R23,R25_____________470R 1/4W Resistors
R24__________________2K 1/2W Trimmer Cermet
R26,R27_______________4K7 1/2W Resistors
R28________________220R 1/2W Resistor
R29__________________2K2 1/2W Resistor
R30_________________50K 1/2W Trimmer Cermet
R31________________68K 1/4W Resistor
R32,R33______________R47 4W Wirewound Resistors
C1,C4,C5,C6________10µF 63V Electrolytic Capacitors
C2_________________47µF 63V Electrolytic Capacitor
C3_________________47pF 63V Ceramic Capacitor
C7_________________15nF 63V Polyester Capacitor
C8_________________22nF 63V Polyester Capacitor
C9________________470nF 63V Polyester Capacitor
C10,C11,C12________10µF 63V Electrolytic Capacitors
C13_______________220µF 63V Electrolytic Capacitor
C14,C15,C17,C18________47µF 63V Electrolytic Capacitors
C16________________100µF 25V Electrolytic Capacitor
C19_________________33pF 63V Ceramic Capacitor
C20_______________1000µF 50V Electrolytic Capacitor
P1,P2______________10K Potentiometers
P3_________________10K Potentiometer
D1,D2____________BAT46 100V 150mA Schottky-barrier Diodes
D3_________________LED
Q1,Q3____________BC546 NPN Transistors
Q2_______________BC556 PNP Transistor
Q4,Q5____________BD139 80V 1.5A NPN Transistors
Q6_____________MJ11016 120V 30A NPN Darlington Transistor
Q7_____________MJ11015 120V 30A PNP Darlington Transistor
J1,J2___________6.3mm. Mono Jack sockets
SW1,SW2___________SPST Switches
SPKR______________speakers 8 or 4 Ohm with Minimum power 75W
Monday, September 15, 2014
Bass Treble Tone Control Wiring diagram Schematic
How build a Bass-Treble Tone Control Circuit Diagram . The LM1036 is a DC controlled tone (bass/treble), volume and balance schema for stereo applications in car radio, TV and audio systems. An additional control input allows loudness compensation to be simply effected. Four control inputs provide control of the bass, treble, balance and volume functions through application of DC voltages from a remote control system or, alternatively, from four potentiometers which may be biased from a zener regulated supply provided on the schema. Each tone response is defined by a single capacitor chosen to give the desired characteristic.
Build a Bass-Treble Tone Control Circuit Diagram
Features:
- Wide supply voltage range, 9V to 16V
- Large volume control range, 75 dB typical
- Tone control, ±15 dB typical
- Channel separation, 75 dB typical
- Low distortion, 0.06% typical for an input level of 0.3 Vrms
- High signal to noise, 80 dB typical for an input level of 0.3 Vrms
- Few external components required
Vcc can be anything between 9V to 16V and the output capacitors are
10uF/25V electrolytic.
Friday, September 12, 2014
Tone control low noise circuit
Tone control or pre-amplifier is an amplifier circuit supporters. Sometimes some of us do not know where a good amplifier, a raft alone and the results are not much different or even the same. Therefore we must know the character of the advantages and disadvantages of each amplifier equipment.
Tone control low noise here does not mean without noise, but noise compared with the lowest tone control on the market, for example Ronica transistor 4, TL-084, TC-2 LM833 etc.
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| CSE | Circuit Schematic Electronics |
Jump toexplanation of each component ...
Potensio 1 serves to regulate the intensity / level of the incoming signal is assisted potensio 2 as balance / counterbalance. Potensio 2 is still installed and is usually an optional component. 1-2uF/250V capacitor R1 is actually a brand name,but I prefer to replace it with a 1K resistor / 5% normal for reasons to avoid hum and interference sensitive. R2 R3 while minimizing interruption to adjust the impedance OP-amp 1. R4 and R5 serves to increase the gain of 1.3 times. Pre amplifiers typically use a strengthening standards by 2 times, but by most of us think it has a noise. So I chose the value of 1.3 times, but the most minimal noise signal from the volume is enough to make the lamp light peak.
For low noise ...Cause of noise in op amp 1, apex audio even eliminate this stage. CanThis step is also used as a buffer (jumper R5), the strengthening of a time. Lower values increase the value of R5 or R4 with consequent gains to be less, but remains at a value above 1 times due to input non-inverting path to take, so that the signal and noise can be reduced. R4 can also be replaced with a 10K trimpot and middle leg into the bass range adjuster (bass resonance).
C1 and C6 as a filter to reduce the treble / high frequency of excessive or often called oscillation prevention. R6 is actually an optional component of the impedance a little help customize the system. Ideally the same as the R8 R7 to facilitategive the sign of the gain on potensio panel tone control. C2 and C3 form a series circuit treble filter (high pass filter), its value is greater then the sound that passed the mid. C4 and C5 assisted by R9 and R10 form the low pass filter (filter bass), the greater the value of C is a bass sound that will be missedthe soft / low (maximum of 47nF), the smaller the value of c is the bass signal that is passed will further dip (dig-dig, c4 = c5 = 22nF). This value is suitable for 27-33nF, 47nF instead (depending on taste). Pot 3 & 4 pot set treble and bass levels, the greater the greater the value of this potensio gains (bass & treble including potensio volume). R11 adjusts the output impedance, while the R12 and the red LED indicator that shows if the amplifier Peak has been given a full signal.
15V maximum supply. TL074 IC can, but in designing the PCB, IC can bereplaced with 2x TL072/NE5532/4558.
Wednesday, September 10, 2014
3 Band Tone Control with LF351
3 Band Tone Control circuit uses an op-amp as an amplifier end. Tone Control circuit is a regulator of tone bass, midrange and treble or 3 band called because it can set the three tones. Filter circuit is applied to the series of "Tone Control 3 band" This type baxandal like the title of this article.
Read moreFriday, August 29, 2014
Stereo tone control with loudness and filter
Tone control circuit is used to adjust the tones before entering the amplifier. Tone control over equipped with a loudness and filter directly without using the switch to disconnected or connected. Part of his filter that is C1 and R1 from ground to input , and for his loudness on the R4 and C3 are connected to the input and then go to VR1. C2 and R3 go from ground to the input . After the input is set by volume or VR1 then procesed again by treebel ie C8 , R13 , R14 , and VR2 . Bass on R10 , R11, R12 , C7 ,C8 , and VR3. For supply voltages has been given a stabilization in Q3. See schematic below :
| Click to view larger |
Part list :
R1 = 100K
R2 = 50K trim
R3 = 22K
R4 = 15K
R5 = 1K
R6 = 4K7
R7 = 330K
R8 = 330K
R9 = 3K3
R10= 5K6
R11= 8K2
R12= 5K6
R13= 1K
R14= 1K
R15= 50K TRIM
R16= 50K TRIM
R17= 330K
R18= 4K7
R19= 47K
R20= 1K
R21= 4K7
R22= 2K2
R23= 100R
R24= 22K
C1 = 15n
C2 = 15n
C3 = 560p
C4 = 4u7
C5 = 33u
C6 = 4n7
C7 = 39n
C8 = 39n
C9 = 4u7
C10=4u7
C11=470u
C12=100u
Q1 = C1815
Q2 = C828
D1 = Green Led
This tone control is suitable with 150W OCL power amplifier type 036.But the schematic is mono, if you need a stereo tone control you must duplicate the components and circuit.
| Installation the stereo tone control |
Tuesday, August 26, 2014
Tone control circuit
Description
A simple single-transistor circuit will give approximately 15 dB boost or cut at 100 Hz and 15 kHz respectively. A low noise audio type transistor is used, and the output can be fed directly into any existing amplifier volume control to which the tone control is to be fitted
Circuit Diagram
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