2CH RC Remote Control 27MHz Circuit PCB Transmitter and Receiver Board Radio System with Antenna Set for Car Truck Toy|Parts & Accessories| - AliExpress
27MHz Transmitter-Receiver Radio Control PCBs and Schematic Diagram
Simple FM and am receivers for radio stations. Simple FM and AM receivers for radio stations Input circuits for a 27 MHz receiver
27MHz / 49 MHz Walkie Talkie
Download 27mhz images for free
مدير المدرسة ضعف معقد simple walkie talkie - southeastcxosummit.com
Superregenerative radio receiver
This circuit is a very sensitive 3-transistor amplifier (27MHz)