[Mini Amplifier Kit]
- I want to increase the sound a little more melody IC companies MES, a series of sound effects. Equipment dedicated headphone
Can be used for amplification, such as you want to play a little with the speaker.
- Amplifier of this kind used to be there were many things that were used, such as IC or LM386 NJM2073
There was one aspect that was difficult to use or lack of power, in many noise or not good enough. This unit
But not sufficient for use as a Hi-fi audio, electronic sounds and a dedicated earphone
I want to play and are suitable for use in a radio speaker.
[Specifications]
- Supply voltage: DC3 ~ 5V
Current - Operating: when 3mA ~ 6mA / 5V (only a single IC, except speakers)
- Output: 1.2W (5V/8Ω) maximum
- Dimensions: PCB (printed circuit board only) 28mm × 66mm
[Content of set]
- Dedicated printed circuit board (1): one
- (2) IC (HT82C739): one
- Variable resistance (3) (10KΩ): one
- Electrolytic capacitor (4) (100μF): one
- Multilayer Ceramic Capacitors (5) (1μF): two
- Electrolytic capacitors (6) (1μF): one
- (7) film capacitor (0.001μF): one
Resistance - (8) (10KΩ): two
- Cable for (9): 1m
- Assembly instructions vehicle sensor unit
[Circuit diagram]
※ Please refer to the picture or the manufacturer site.
[Connection with sensor]
- Speaker polarity does not matter. Connect the speaker size if necessary
Please. Impedance 8Ω is appropriate.
- If you use the battery power is convenient battery case with a single 3 × 3 switch (sold separately).
- Connect the black battery case GND-, red VCC-.
- Should be connected using a connection cable that matches the sound source equipment connected to the AUX terminal of this unit.
[If you want to use PIC melody IC Series, Inc. MES]
- Connect the 8-pin and 5-pin AUX melody IC as shown. I want to G side towards the 8-pin.
- Speaker of the kit and you can continue to use it if things Annex kit.
- If the kit that works such as the departure bell, with three batteries, power amplifier of the sound module kit Narikiri
You can use the power, I will consume the amplifier is always current, a separate power switch
I recommend that you give.
-
because I can make a printed circuit board only, without having read a circuit diagram!-
Illustrated with manual soldering iron, even for beginners!( This is a machine translation. Please allow for possible misinterpretations in the text. )