ASSEMBLY OF THE BN9

1. Orient the circuit board as shown in the Parts Layout Diagram.

2. Install U1, the LM-380 IC into the PC board, making sure that all 14 pins are in their proper holes. Also note in which direction the notch is oriented in the Parts Layout Diagram. Make sure U1 is mounted in the same way when you solder it in. To make soldering easier, flip the board over so the pins are facing up. This way the part can be soldered flush to the board with ease. Don’t worry about all the pins being tied together in the center, these are grounding pins that also act as heat sinks to keep your amp from getting too hot during use.

3. Install Q1, the 2N3904 transistor. Notice the correct position of it’s flat side. Guide all three leads into their respective holes and solder the part in place.

4. Install R1, a 220K ohm resistor (red-red-yellow).

5. Install R2, a 10K ohm resistor (brown-black-orange).

6. Install C1, a .01µF ceramic disk capacitor (marked 10nF, 103 or .01).

7. Install C2, another .01µF ceramic disk capacitor (marked 10nF, 103 or .01).

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Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier manual Assembly of the BN9

BN9, 2 1/2 Watt Super Sleuth Audio Amplifier specifications

The Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier, model BN9, is a compact yet powerful device designed for enthusiasts and professionals seeking high-quality audio amplification solutions. Engineered with precision, the BN9 amplifier stands out for its ability to deliver robust audio performance in a remarkably small footprint. It is especially favored for use in surveillance applications, audio monitoring, and small-scale public address systems.

One of the main features of the BN9 amplifier is its impressive output power. With an output of 2.5 watts, it is capable of driving small speakers effectively, making it an excellent choice for personal audio projects or discreet monitoring setups. The ability to output this power while maintaining clarity ensures that users can enjoy high-fidelity sound without distortion, even at higher volume levels.

The BN9 incorporates innovative technologies that enhance its functionality and ease of use. The amplifier is equipped with a built-in power supply, which simplifies setup and eliminates the need for additional external components. This feature is particularly beneficial for users who may not have extensive technical knowledge, allowing for a straightforward plug-and-play operation. Additionally, the amplifier boasts a compact design, measuring just a few inches across, making it easy to integrate into various setups without consuming valuable space.

Another noteworthy characteristic of the Ramsey BN9 is its versatility. It can be used with a wide range of audio sources, including microphones, audio players, and computers, making it suitable for diverse applications. Furthermore, the unit features adjustable volume controls, allowing users to tailor the sound output to their specific requirements. The use of high-quality components ensures durability and longevity, which is essential for both casual users and professionals who rely on consistent performance.

In terms of connectivity, the BN9 amplifier is designed for user-friendly integration, featuring standard input and output jacks that accommodate various audio devices. This flexibility further enhances its usability in multiple settings, from home audio systems to more complex surveillance configurations.

In conclusion, the Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier, BN9, combines quality, versatility, and ease of use into a single compact unit, making it an excellent choice for anyone seeking reliable audio amplification in a wide array of applications. Whether for home use, surveillance, or public announcements, the BN9 continues to receive acclaim for its performance and functionality.