Driver Board/1pc P-134/2pc P-134/2pcs P-134 VU Meter + 1pcs Drive Board VU Meter AMP Amplifier Head DB Level DAC Audio Backlight
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Price: US $14.68 US $20.68 (Discount 29%)
Rating: 4.8 / 5.0 (96.0%) from 5 Reviews
Sold : 15
Stock : 39976
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Color : Driver Board, 1pc P-134, 2pc P-134, 2 with 1
Specification
Brand Name : Olive Leaf
Maximum Power Per Channel : NO POWER
Model Number : P-134 VU Meter
Description
Driver Board/1pc P-134/2pc P-134/2pcs P-134 VU Meter + 1pcs Drive Board VU Meter AMP Amplifier Head DB Level DAC Audio Backlight
You have four options:
● Driver Board for VU Meter● 1pcs P-134 VU Meters● 2pcs P-134 VU Meters● 2pcs P-134 VU Meters + 1pcs Driver Board for VU Meter
VU Meter Parameters:
● Pointers Material: Nickel silver strips● Pointer color: orange● The direction of the pointer swing: left to right● Pointer length: 70 ± 1 mm from the center axis to the needle end● Pointer width: 0.45 ± 0.05 mm
VU Meter Features:
● Standard test conditions temperature: 20 ℃, humidity 70% . Can also be tested under normal temperature and humidity.● The influenza degree pointer at the zero scale to the maximum scale sensitivity of 1000 uA ± 10% (full scale position)● Internal impedance :100 Ω ± 10%● Insulation impedance meter outside the box plus the electrical circuit with 500V DC plus 50M ohm meter shell● Electrical insulation of the circuit impedance is 500V DC voltage test of the insulation value. Pointer to overlap with the zero-scale tolerance of ± 1mm balanced meter using a standard position and tilt 90 degrees to allow the error range of ± 1mm● Pointer to mount the current instant plus three times the full scale current, and slowly reduced to the the electric influenza degree 1/2 reading,● The pointer will return to the scale plate within 1/3 scale friction meter coupled with the current, and slowly increase or decrease to a certain value, indicating the point of error range of ± 1mm,● Brake instantly plus scale plate 2/3 of the current value of the pointer indicates the location of the time required for a second or less.
VU Meter Special Test:
● Tests on each interval of five seconds to ten times the full scale current input overload, the action is repeated nine times for each time of 0.5 seconds .After this test, 7-14 to maintain normal.● Vibration test meter packaged in the vibration plate 1,000 times per minute, up and down 4mm shock In each direction for 10 minutes. After this test 7-14 to maintain normal impact test meter packaged 30-cm height of fall in 3cm thick wooden board, XYZ three-direction test.After this test, 7-14 to maintain normal reliability test the current input of 100,000 calibration points within the limits of current sense is still the standard environmental impact test temperature of 50 ° C, humidity 85%, for 100 hours, after this test 7-14 to maintain normal.● Terminal pull test: terminals must withstand one kilogram tension, sustained 60 seconds will not be affected.
VU Meter Others:
● Using the temperature limits: -10 ℃ to +60 ℃ RH 35 to 85%● Storage temperature limits: -20 ℃ to +60 ℃ RH 35 to 85%● ----- Do not use the meter in direct sunlight, and PUT the meter in the box to avoid foreign matter into the meter internal.● Soldering Condition terminal about 3 mm placed in the temperature of 230 ℃ tin plate, placed 3.5 seconds.● After this test, 7-14 to maintain normal,● Hand-held soldering gun to solder temperature 350 ℃, the terminal contact for 3.5 seconds, the terminal front-end of about 3mm contact with the solder gun.● After this test, 7-14 to maintain normal,● Anti-static test in the same direction three times, to characterize the difference between the pointer in the length of the scale in a transparent cover surface to dry nylon 1/3 back to the zero position.● Bulb size: 4 blue LED backlighting, parallel to the PCB (3.0-3.2V 80mA)
VU Meter Note:
● The finished VU Meter Driver Board have passed the power aging test, and are accurately adjusted according to the head of your selected
VU Meter Features:
● The new VU level meter driver board is a perfect replacement for the discontinued TA-7318P driver IC. It has a better effect of driving the meter head, the needle oscillates quickly, and the response is sensitive. It further increases the output signal on the basis of the 7318 circuit, which can drive the previous 7318 circuit Driven meter, the new wide-range voltage regulator circuit is added, the working performance is more stable, the original layout of the original adopts the original classic design style, beautiful appearance, compact and practical! And with the expansion circuit, increase the peak PEAK indicator function!
VU Meter Instructions for use:
● Signal input: The driver board provides two signal input methods, you can choose any one according to your situation! (Hint: If the signal is taken at the back end of the volume potentiometer or the output of the power amplifier, the pointer swing will be controlled by the volume potentiometer, that is, the volume of the pointer is large when the volume is large, and the amplitude of the pointer is small when the volume is small.)① LOW, GND, LOW: This is the low-level signal input terminal of the driver board, which is used to connect the audio signals of CD players, computer sound cards, pre-stage, and other audio source devices. When wiring, LOW, GND, LOW correspond to: left, Ground and right channels are sufficient.(Adjust the two potentiometers on the driver board to control the size of the needle swing. If the signal is fully open, the pointer swing does not reach your expected value, or if the volume becomes low, you can change the R2, The R3 resistor is removed. R2 and R3 are used to attenuate the ground when the drive board is connected to a high-level input signal. It is only used when the high-level input is used, because there is no way to determine which signal input you use. Method, so the resistance is welded during production, it is easier to remove the resistance than welding, after all, not everyone has welding equipment, ha ha, of course, this is a very special case, usually do not need to be removed!)②HIGH, GND, HIGH: This is the high-level signal input terminal of the driver board. It is used to connect the power signal amplified by the power amplifier. The attenuation circuit built in the driver board will attenuate the high-intensity level of the power amplifier output and send it into In the driver IC, the attenuation circuit contains the resistors R2 and R3 just mentioned. When connecting the output terminals of the amplifier, the two HIGH terminals of the driver board are respectively connected to the two red terminals of the amplifier and the two black terminals of the amplifier. , Select any one of them to connect to the GND terminal of the driver board.● Drive output:V +, V-, terminal: this is the driver board is the backlight of the meter, and provides two sets of 12V backlight power supply output terminals. Please pay attention to match the voltage and positive and negative directions of the light source of the meter when connecting.＋ 、 － 、 Terminal: This is the output terminal of the driver board's drive meter head, which are respectively connected to the “＋” and “－” terminals of the two level meters. Pay attention to the positive and negative directions when connecting.● Power supply parameters:Operating voltage: AC / DC 12-15V AC / DC wide-range operating voltage (It is recommended to use an independent power transformer or independent winding for its power supply!)Rated power: 3W● PCB size: 60 * 39mm● Random accessories: the meter head connecting line is half a meter, divided into two and used.
Backlight to 12V Voltage Divider Resistor Connection Method：
Package include:
● Driver Board for VU Meter● 1pcs P-134 VU Meter● 2pcs P-134 VU Meter● 2pcs P-134 VU Meter + 1pcs Driver Board for VU Mete
Store Info
Store Name : JOJOHIFI Store
Country Name : China
Follower : 428
Open Time : Dec 24, 2019
Opened Year : 1
Province :
Positive Review : 509 (80.0%)
Reviews
5 Stars : 4 (4%)4 Stars : 1 (1%)
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1 Stars : 0 (0%)
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