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RF-mixers
Welcome to our specialized webshop, the place for vintage and hard to find electronics parts. One of our unique product categories are Mixers, essential components in the world of radio frequency engineering.
Mixers, also known as high-frequency mixers, are nonlinear devices that can combine two or more signals, resulting in new frequencies. These components are often used in applications such as radio and television broadcasting, satellite communications and radar.
They are crucial for converting signals to usable frequencies. Our selection includes a wide range of Mixers, both vintage and contemporary models.
Each part has been carefully tested and checked to ensure that it meets the highest performance standards. Whether you are a hobbyist looking to repair an old radio, or a professional looking for that one specific part, our webshop is the ideal place to look. Our selection is updated regularly, so keep an eye on our website for the latest Mixers available.
- Electronic mixers are specialized circuits used to combine two or more electronic signals. They are based on the principle of frequency conversion in which the input signals are modulated to generate new frequencies. The main components of a mixer are the local oscillator, the RF input and the IF output. The local oscillator generates a carrier wave that is mixed with the RF signal to produce the IF signal. This process is also known as heterodyning.
- Several types of mixers are available, including active mixers, passive mixers, double-balanced mixers and quadruple mixers. Active mixers use transistors or tubes to amplify the input signals before they are mixed. Passive mixers use diodes or other nonlinear elements to mix the signals without any amplification. Double-balanced mixers and quadruple mixers are more complex designs that minimize interference and unwanted signals.
- Electronic mixers are widely used in wireless communication devices such as radios and cell phones. They are also used in music production and sound engineering to combine multiple audio tracks into a single stereo track. Other applications include radar systems, satellite communications, and spectroscopy equipment.
- There is a wide range of mixers available on the market, varying in size, specifications and price. They range from simple two-way mixers to complex multi-way mixers with advanced features such as digital control, integrated amplifiers and filters. The choice of mixer depends on the specific requirements of the application, such as frequency range, dynamic range, noise level and gain.
Double-balanced mixers form a specific mixer architecture characterized by high isolation between ports and excellent suppression of unwanted products. They consist of a pair of active or passive mixers placed in a balanced configuration to mix the RF and LO signals. The design uses quadruple diodes or transistors in a ring modulator configuration to achieve the desired mixing performance. These mixers offer very good carrier suppression and are therefore well suited for applications with high signal purity requirements.
