300W Valve RF Transmitter circuit
Posted on May 3, 2017 9156
The second tier, better known as the Buffer (Buffer), is a reinforcement and isolation step together. It amplifies the signal produced by the oscillator and isolates the oscillation step from any changes in the final stage of the transmitter. The final stage or power amplifier consists of lamp 813 and works in class C. The various RFCs used in the circuit do not allow the generated frequency Affect the feed devices.
During construction make sure you avoid long wiring that can cause unwanted vibrations. Plug-in power transformers are required to supply the lamp filaments, since both lamps are powered by 6.3V while 813 to 5V.