This article provides information about 27 MHz Transmitter-Receiver Radio Control related to its PCB assembly/construction. The picture below shows the schematic diagram of the transmitter using IC TX2B.
will be explained with the instruction for constructing the PCBs
(assembly, tuning, transistors, IC, resistors, capacitors (Disk Ceramic,
Metallised Polyester, Electrolytic)) for both transmitter (Inductors,
LED, Zener Diode, Crystal) and receiver (Zener Diode, Inductors,
Resistors, Transistors) with the part value and specifications listed,
and how to wiring up the PCBs for both transmitter and receiver.
Find complete description on 27MHz Transmitter-Receiver Radio Control PCBs and Schematic Diagram in this pdf datasheet application (source: scorpiotechnology.com.au).