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A homemade neutralizing capacitor that has some advantages over commercially-made units is shown in Fig. 1. The method of construction permits bringing one terminal of the capacitor directly through a chassis, thus eliminating the extra feed-through insulator ordinarily required. The capacitor requires a minimum of chassis area for mounting, and can be made to any desired maximum capacitance commensurate with high-voltage spacing requirements.
Fig. 1. Drawing of the homemade neutralizing capacitor used by W1SIZ/6.
Capacitors of this type may be tailor-made for the popular capacitive neutralizing systems such as those described in Chapter Six of The Radio Amateur's Handbook.
Thomas F. Snyder, W1SIZ/6.