This converter converts a signal in the 200 kHz to 3.8 MHz band into frequency signals that can be tuned on a 3.5 MHz receiver. Coil data not provided.
This circuit uses only passive components calculated for the desired frequency. We found it in an...
This fourth-order circuit was found on an 80's Radio Electronics. The power supply must be...
This simple circuit controls the brightness of an LED from LDRs, NTCs, PTCs or other resistive sensors....