Рет қаралды 1,250
Transceiver alii.pub/6tggrx
Key telegraph alii.pub/6tggzi
By pressing the button you can adjust the telegraph transmission speed and other settings. If the current consumption of the transmitter is large, then connect a 33 Ohm resistor in series with diode D2.You can use a resistor to diode D2 to regulate the output power of the transmitter and its current. You can connect a 75 Ohm resistor.With a 12 Volt power supply, the output power of the transmitter will be approximately 3.3 W. You can increase the power by increasing the supply voltage to 13 Volts and maybe even higher. The heatsink for the 882 transistor is small and may have to be increased, otherwise it will get very hot.A winding with 8 turns must be connected to the 8050 collector, and two turns to the 882 base