RF Generator for HF Bands 1.8- 30- MHz

Figure 3 shows design of the RF transformer T1. Transformer T1 is wound on a ferrite ring with a permeability of 600 and OD of 10 mm. The winding consists of 10 turns of 0.3-mm wire (28 AWG). The wires are twisted together, at a rate of one twist per centimeter, and are wrapped equally around the entire core, with identical spacing between turns.

The RF Generator was assembled in cabinet with sizes 160x90x100-mm. The cabinet was made from two sided PCB. Generator was made by Manhattan style. Design should be compact and rigid as possible. The generator was fed from internal NiCad battery on 12V/800mA.

Reference

1.     Radio, 1999, # 5, p. 59

73! de VA3ZNW

Figure 3 Design of the RF Transformer

Figure 2

Design the Inductors of the RF Generator

Table 1 Data for Inductors of the RF Generator

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