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EF Johnson 154-1-4, 15-250 pF Single Section Air Variable Capacitor 2000V

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MPN:
154-1-4
Condition:
Used
Shipping:
$8.00 (Fixed Shipping Cost)
  • Genuine E.F. Johnson 154-1-4 single-section air variable capacitor. Capacitance approximately 15-250 pF (catalog 12-244 pF), 0.045″ plate spacing, 2000 V peak rating. Compact Type E design with steatite insulation, aluminum plates, and ¼″ shaft. Ideal for ham radio, antenna tuners, amplifiers, transmitters, and RF projects. Dimensions approx. 4″ L × 2⅝″ W × 2⅝″ H. Classic Waseca, MN quality. Clean used condition. Perfect for restoration or new builds needing reliable air-variable capacitance.
  • Genuine E.F. Johnson 154-1-4 single-section air variable capacitor. Capacitance approximately 15-250 pF (catalog 12-244 pF), 0.045″ plate spacing, 2000 V peak rating. Compact Type E design with steatite insulation, aluminum plates, and ¼″ shaft. Ideal for ham radio, antenna tuners, amplifiers, transmitters, and RF projects. Dimensions approx. 4″ L × 2⅝″ W × 2⅝″ H. Classic Waseca, MN quality. Clean used condition. Perfect for restoration or new builds needing reliable air-variable capacitance.
  • Genuine E.F. Johnson 154-1-4 single-section air variable capacitor. Capacitance approximately 15-250 pF (catalog 12-244 pF), 0.045″ plate spacing, 2000 V peak rating. Compact Type E design with steatite insulation, aluminum plates, and ¼″ shaft. Ideal for ham radio, antenna tuners, amplifiers, transmitters, and RF projects. Dimensions approx. 4″ L × 2⅝″ W × 2⅝″ H. Classic Waseca, MN quality. Clean used condition. Perfect for restoration or new builds needing reliable air-variable capacitance.
$19.99
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Description

EF Johnson 154-1-4, 15-250 pF Single Section Air Variable Capacitor 2000V

Specifications
  • Manufacturer: E.F. Johnson Co., Waseca, Minn., U.S.A.
  • Model / Catalog No.: 154-1-4 (Type E single-section, equivalent to 250E20)
  • Sections: Single
  • Capacitance: Min. ~12–15 pF, Max. ~244–250 pF (catalog nominal 12–244 pF; your measured 15–250 pF is typical)
  • Plate spacing: 0.045″
  • Plates: 23
  • Peak voltage rating: 2000 V
  • Shaft: ¼″ diameter (short shaft variant)
  • Dimensions (your measurements): Length 4″, Width 2⅝″, Height 2⅝″ (matches Type E panel space ~2¾″ × 2⅝″; catalog body length ~3–3¼″ excluding shafts)
  • Construction: Aluminum plates (.032″ thick with rounded edges), heavy aluminum end frames with ¼″ tie rods, dense molded steatite insulators, cadmium-plated phosphor-bronze rotor contacts. Compact high capacity-to-volume design for medium/low-power RF service.
This is a standard Type E single-section unit.
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