Feature:
10-segment LM3915 level indicator board. The board has a first-level amplifier (using 741 single op amp), and there are two sets of high and low inputs. It can be used to indicate the output level of the front stage or power amplifier.
Power supply: 12VDC.
There are 11 LEDs in total, 3mm LEDs, 10 LEDs for level indication and 1 LED for power supply. The color matching default is: 7 green, 3 yellow, 1 red
Specifications:
Power supply: 12V150MA
Input sensitivity:
low input: 150mV to 6V rms (47K)
High input: 1.5V to 60V rms (470K)
Size: 35x70mm/1.37x2.75in
Weight: 20g
Wiring instructions:
There are 4 wires on the board, distinguished by color,
Connected to the pre-stage or microphone amplifier:
Red: connect the power supply 12V positive, black: connect the power supply 12V negative.
Yellow: connect to the positive signal line, green: connect to the negative signal line (outer layer, shielding layer)
Instructions for connecting to the speaker terminal:
1. The yellow wire needs to be soldered down and soldered to the HIGH position.
2. Connect the blue wire-the black terminal of the horn, and the yellow wire ---- the red terminal of the horn.
3. It should be noted that the power ground wire and signal ground wire of the panel power supply should be connected together.
Package included:
1pcs*LM3915 10 LED Audio Level Indicator Assembled
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DO NOT Leave us Neutral or Negative Feedback without telling us in
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We reply any email messages within 1 business / working days; Our Business hours: Mon-Fri 9:00-18:00, UTC/GMT +8 hours.
We only accept Ebay payments from verified accounts with confirmed addresses.
Orders will be shipped after receiving cleared payment.
Orders will be shipped after receiving cleared payment.
Item(s) will be shipped within 2 business days after payment is cleared.
If you want faster shipping way. Please contact us before making payment.
Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us.
If you want faster shipping way. Please contact us before making payment.
Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us.
If you have any questions, please feel free to email our service
specialists 24 Hours a Day, 7 Days a Week. We will reply you as soon as
possible.
Return/refund is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is received.
Please contact us first before returning your product!!!
Return/refund is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is received.
Please contact us first before returning your product!!!
Please
DO NOT Leave us Neutral or Negative Feedback without telling us in
advance. We will do our best to help you to resolve your problems.
We reply any email messages within 1 business / working days; Our Business hours: Mon-Fri 9:00-18:00, UTC/GMT +8 hours.
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