This transmitter for the 80-meter range of radio amateurs was found in a 1995 documentation. The circuit uses a valve that can provide an output of close to 8 W which results in an excellent range with suitable antenna and favorable conditions for propagation. L1 is formed by 50 turns of wire 28 in a ferrite rod. L2 consists of 40 turns of wire 28 in a ferrite rod. L4 is formed by 8 turns of the same wire next to L3 and L3 is formed by 40 turns of wire 28 in a 2.5 cm diameter tube without core. L5 has 40 turns of wire 28 in a 2.5 cm diameter tube and L6 for 6 turns of the same wire next to L5. T1 is a 600 x 8 ohms modulation transformer.
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