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Cardwell 17 to 172 pF 1500 Volt Single Section Air Variable Capacitor

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Condition:
Used
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  • Vintage Cardwell single-section air variable capacitor, 17–172 pF, approximately 1500 V peak rating. Classic USA-made multi-plate design with ~1/32-inch plate spacing and 1/4-inch shaft. Measures about 5-3/8 × 3-1/4 × 2-1/4 inches. Ideal for amateur radio receivers, transmitters, antenna tuners, or restoration projects needing a reliable low-loss component
  • Vintage Cardwell single-section air variable capacitor, 17–172 pF, approximately 1500 V peak rating. Classic USA-made multi-plate design with ~1/32-inch plate spacing and 1/4-inch shaft. Measures about 5-3/8 × 3-1/4 × 2-1/4 inches. Ideal for amateur radio receivers, transmitters, antenna tuners, or restoration projects needing a reliable low-loss component
  • Vintage Cardwell single-section air variable capacitor, 17–172 pF, approximately 1500 V peak rating. Classic USA-made multi-plate design with ~1/32-inch plate spacing and 1/4-inch shaft. Measures about 5-3/8 × 3-1/4 × 2-1/4 inches. Ideal for amateur radio receivers, transmitters, antenna tuners, or restoration projects needing a reliable low-loss component
  • Vintage Cardwell single-section air variable capacitor, 17–172 pF, approximately 1500 V peak rating. Classic USA-made multi-plate design with ~1/32-inch plate spacing and 1/4-inch shaft. Measures about 5-3/8 × 3-1/4 × 2-1/4 inches. Ideal for amateur radio receivers, transmitters, antenna tuners, or restoration projects needing a reliable low-loss component
$24.99
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Description

Cardwell Air Variable Capacitor 17 to 172 pF 1500 Volt Single Section Air Variable Capacitor

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Key Specifications:
  • Brand: Cardwell
  • Model: Unknown (marked with U.S. Patent 1,626,391 and MADE IN U.S.A.)
  • Sections: 1 (single-section)
  • Capacitance: 17 pF minimum to 172 pF maximum
  • Plate spacing: Approximately 1/32 in (0.031 in)
  • Estimated voltage rating: ~1500 V peak (standard ARRL Handbook guideline for ~0.030–0.032 in air-gap spacing; practical RF rating for receiving or moderate-power use)
  • Shaft: 1/4 in diameter
  • Dimensions (approx.): Length 5-3/8 in, Width 3-1/4 in, Height 2-1/4 in
  • Construction: Classic Cardwell multi-plate air-dielectric design with metal frame, tie rods, and insulating supports. Rugged construction typical of mid-century RF tuning applications.
Exact original model number and factory voltage data were not located; the voltage rating is derived from the measured plate spacing.
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