Philadelphia Wireless Training Institute 1947 Receiver circuit

The RF Combo (A3016) integrates three circuits designed to support the development of circuit boards for Stage Four of a subcutaneous transmitter. The printed circuit board maintains the same outline as the RF Tester (A3014). The SAW Oscillator (A3016SO) replaces...

LW, MW and SW bands Receiver

This is a compact three transistor regenerative general coverage receiver with fixed feedback. It's based on the principle of the ZN414 only much higher coverage. The sensitivity and selectivity is relatively good (especially on the LF and MW bands) as...

RF Remote Control Switch Rx-Tx circuits

This circuit includes a 2048 radio remote control transmitter and a corresponding wireless receiver that features high reception sensitivity and low power consumption. The combination of these two components provides a highly reliable remote control system, suitable for various applications...

30m Band Receiver

The direct conversion receiver described consists of only a bandpass filter, mixer IC, VFO and audio filter. With only 22 parts, this simple circuit should take a few hours at the weekend to construct. For extra simplicity, eliminate L1 &...

Intelligent home lighting control switch transmitter and receiver circuit

This design aims to create a long-distance wireless remote control switch lighting control system, which consists of a transmission system and a reception system. The system utilizes wireless transceiver modules for RF transmission and reception. The transmitting portion mainly comprises...

Grounded Grid Amplifiers

Floating the grid above ground is detrimental for RF performance and arc protection. The connection of the control grid to ground is critical for stability. It is essential to keep the grid connection to ground as wide and short as...

Wireless Ir Security System

This system consists of an infrared (IR) transmitter, an IR receiver combined with an RF transmitter, and an RF receiver that activates an alert beeper. The IR transmitter utilizes two LEDs to emit a pulsed beam of invisible infrared light...

schematic of programmer radio

This time, information will be shared about the schematics of radios, specifically the schematic of a programmer radio, along with the latest information available on Onmilwiki. The schematic of a programmer radio typically includes various components essential for its operation, such...

building rf remote control

The simplest approach to creating a remote-controlled robot is to repurpose a low-cost wireless toy car by removing its receiver module and remote control. Alternatively, one can design a custom RF remote using an ASK (Amplitude Shift Keying) based transmitter/receiver...