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EF Johnson Dual Section 22-132 pF and 16-61 pF 3/16 inch Spacing Air Variable Capacitor

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  • EF Johnson dual-section air variable capacitor with measured ranges of 22–132 pF and 16–61 pF. Features 3/16-inch plate spacing for high-voltage RF applications, ¼-inch shaft, and aluminum frame measuring approximately 7½ × 4¼ × 4½ inches. Ideal for amateur radio transmitters, amplifiers, antenna tuners, and vintage equipment restoration. Ceramic insulated construction ensures reliable performance. Ready for your next high-power RF project or parts inventory.
  • EF Johnson dual-section air variable capacitor with measured ranges of 22–132 pF and 16–61 pF. Features 3/16-inch plate spacing for high-voltage RF applications, ¼-inch shaft, and aluminum frame measuring approximately 7½ × 4¼ × 4½ inches. Ideal for amateur radio transmitters, amplifiers, antenna tuners, and vintage equipment restoration. Ceramic insulated construction ensures reliable performance. Ready for your next high-power RF project or parts inventory.
  • EF Johnson dual-section air variable capacitor with measured ranges of 22–132 pF and 16–61 pF. Features 3/16-inch plate spacing for high-voltage RF applications, ¼-inch shaft, and aluminum frame measuring approximately 7½ × 4¼ × 4½ inches. Ideal for amateur radio transmitters, amplifiers, antenna tuners, and vintage equipment restoration. Ceramic insulated construction ensures reliable performance. Ready for your next high-power RF project or parts inventory.
  • EF Johnson dual-section air variable capacitor with measured ranges of 22–132 pF and 16–61 pF. Features 3/16-inch plate spacing for high-voltage RF applications, ¼-inch shaft, and aluminum frame measuring approximately 7½ × 4¼ × 4½ inches. Ideal for amateur radio transmitters, amplifiers, antenna tuners, and vintage equipment restoration. Ceramic insulated construction ensures reliable performance. Ready for your next high-power RF project or parts inventory.
$26.99
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Description

EF Johnson Dual Section 22-132 pF and 16-61 pF 3/16 inch Spacing Air Variable Capacitor

(Note: Exact model number is not stamped or visible in the photos and is not uniquely identifiable from the physical dimensions and measured capacitances alone. Common EF Johnson dual units of this era/size used designations such as the 100-series or similar; list it as dual-section with the measured values.)Key Specifications (from your measurements + typical construction of this style unit)
  • Manufacturer: E.F. Johnson
  • Sections: 2 (independent, dual gang)
  • Section 1: 22 pF min – 132 pF max (you measured ~123–132 pF range; use your measured max of 132 pF)
  • Section 2: 16 pF min – 61 pF max
  • Plate spacing: 3/16 inch (≈0.1875")
  • Overall dimensions: Length 7½", Width 4¼", Height 4½"
  • Shaft: ¼" diameter
  • Frame: aluminum with ceramic/insulator supports and mounting feet
  • Typical voltage rating for 3/16" plate spacing air-variable capacitors of this construction: approximately 3,000–4,500 V peak (often rated ~3.5–4 kV)
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