schema radio chip

The SA605 is a high-performance monolithic low-power FM intermediate frequency (IF) system that integrates a mixer, oscillator, two limiting intermediate frequency amplifiers, a quadrature detector, muting, a logarithmic received signal strength indicator (RSSI), and a voltage regulator. It combines...

This is likely the simplest radio that can be assembled. The circuit design is straightforward enough to be completed in just a few minutes, allowing users to listen to their favorite programs immediately. The circuit of a single transistor...

With the storm season recently upon us, it is common to switch car headlights on during the daytime. Unfortunately, it is easy to forget to turn them off again when parking, resulting in a flat battery. This circuit will...

This circuit illustrates the modifications made due to a blown resistor on the backside, which was soldered in place. The issue was traced back to this specific resistor. Currently, the pattern change switch is set to Option 3, which...

This is a straightforward AM radio circuit utilizing only two transistors. The coil L1 and variable capacitor C1 create the tank circuit. Transistor Q1 is responsible for demodulation, and the demodulated signal is accessible at the base of Q1....

This timer is intended for individuals seeking to achieve a tan while minimizing excessive exposure to sunlight. A rotary switch adjusts the timer based on six categorized photo-types. A photoresistor modifies the preset time value in relation to sunlight...