
( Brand: Toshiba ), ( Model: 2SA484 ), ( Part Type: Driver )
The Toshiba 2SA484 is a NPN general-purpose power transistor, specifically designed for audio applications. It's a highly versatile component, making it an ideal choice for various applications within the field of audio electronics.
The Toshiba 2SA484 driver transistor is a key component in amplifier circuits, particularly in the legendary Pioneer SX-828 stereo receiver. Its main function is to provide a low-impedance drive to the output stage of the amplifier, ensuring efficient power transfer and minimizing distortion.
This transistor boasts a collector current rating of 1.6A, which makes it suitable for driving power amplifiers with moderate power requirements. The maximum collector-emitter voltage (VCEO) is rated at 100V, providing ample headroom for operation. The maximum collector-emitter dissipation (Dc) is 300W, indicating its ability to handle a substantial amount of power.
The Toshiba 2SA484 also features a high-speed switching capability, with a cut-off frequency (fT) of 200MHz. This high-frequency performance ensures that the transistor can effectively manage high-frequency signals, resulting in improved sound quality and reduced distortion in the audio output.
The transistor's package is TO-3, which is a large metal can that allows efficient heat dissipation. This is crucial for maintaining stable operation in high-power applications, where heat build-up can be an issue.
In summary, the Toshiba 2SA484 is a robust, high-performance driver transistor well-suited for audio applications. Its combination of high power handling, high-speed switching, and efficient heat dissipation make it an excellent choice for amplifier circuits in audio equipment, such as the Pioneer SX-828.
Pros of buying Toshiba 2SA484 driver transistor for Pioneer SX-828:1. Compatibility: The Toshiba 2SA484 is a direct replacement for the original driver transistors used in the Pioneer SX-828. This ensures that the transistor will work seamlessly with the rest of the amplifier's circuitry.
2. Availability: The Toshiba 2SA484 is still widely available new and used, making it easy to find and purchase.
3. Durability: Toshiba is known for producing high-quality electronic components, and the 2SA484 is no exception. This transistor is likely to last a long time, even with heavy use.
Cons of buying Toshiba 2SA484 driver transistor for Pioneer SX-828:1. Cost: The Toshiba 2SA484 may be more expensive than some other driver transistors available on the market. However, considering the quality and compatibility of the Toshiba transistor, the additional cost may be worth it for some customers.
2. Potential for damage: If not installed correctly, the transistor could be damaged, which could result in further repair costs. It is important to follow the installation instructions carefully and to use the correct tools and techniques to avoid damaging the transistor.
Conclusion:The Toshiba 2SA484 is a high-quality driver transistor that is compatible with the Pioneer SX-828. While it may be more expensive than some other options, the durability and reliability of the Toshiba transistor make it a worthwhile investment for those looking to repair or upgrade their Pioneer SX-828 amplifier. As with any repair or upgrade, it is important to follow the installation instructions carefully and to use the correct tools and techniques to avoid damaging the transistor.
Recommendation:If you are looking to repair or upgrade your Pioneer SX-828 amplifier, the Toshiba 2SA484 is a great option to consider. Its compatibility with the SX-828, as well as its durability and reliability, make it a worthwhile investment. However, it is important to shop around and compare prices to ensure you are getting a fair deal. Additionally, be sure to follow the installation instructions carefully to avoid damaging the transistor.
Up for sale here is this used genuine Toshiba 2SA484 transistor. This is guaranteed to work. I have more transistors and other vintage electronics listed feel free to take a look.
Please see my pictures for details. This was used in the pioneer SX-828 and is probably other vintage gear as well.