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Air Variable Capacitor, 21 to 71 pF 3000 Volt Single Section

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Condition:
Used
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  • Unmarked single-section air variable capacitor, 21–71 pF, approximately 3000 V peak rating. Multi-plate design with ~1/16-inch plate spacing and 1/4-inch shaft. Measures about 4-1/2 × 2-3/4 × 2-1/2 inches. Ideal for amateur radio transmitters, antenna tuners, or RF projects needing a compact medium-voltage tuning capacitor.
  • Unmarked single-section air variable capacitor, 21–71 pF, approximately 3000 V peak rating. Multi-plate design with ~1/16-inch plate spacing and 1/4-inch shaft. Measures about 4-1/2 × 2-3/4 × 2-1/2 inches. Ideal for amateur radio transmitters, antenna tuners, or RF projects needing a compact medium-voltage tuning capacitor.
  • Unmarked single-section air variable capacitor, 21–71 pF, approximately 3000 V peak rating. Multi-plate design with ~1/16-inch plate spacing and 1/4-inch shaft. Measures about 4-1/2 × 2-3/4 × 2-1/2 inches. Ideal for amateur radio transmitters, antenna tuners, or RF projects needing a compact medium-voltage tuning capacitor.
  • Unmarked single-section air variable capacitor, 21–71 pF, approximately 3000 V peak rating. Multi-plate design with ~1/16-inch plate spacing and 1/4-inch shaft. Measures about 4-1/2 × 2-3/4 × 2-1/2 inches. Ideal for amateur radio transmitters, antenna tuners, or RF projects needing a compact medium-voltage tuning capacitor.
  • Unmarked single-section air variable capacitor, 21–71 pF, approximately 3000 V peak rating. Multi-plate design with ~1/16-inch plate spacing and 1/4-inch shaft. Measures about 4-1/2 × 2-3/4 × 2-1/2 inches. Ideal for amateur radio transmitters, antenna tuners, or RF projects needing a compact medium-voltage tuning capacitor.
$19.99
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Description

Air Variable Capacitor, 21 to 71 pF 3000 Volt Single Section

Key Specifications:
  • Brand: Unknown / Unmarked
  • Model: Unknown
  • Sections: 1 (single-section)
  • Capacitance: 21 pF minimum to 71 pF maximum
  • Plate spacing: Approximately 1/16 in (0.0625 in)
  • Estimated voltage rating: ~3000 V peak (standard ARRL / Radio Handbook guideline for ~0.060–0.065 in air-gap spacing; practical RF rating for moderate-power transmitting or antenna tuner use)
  • Shaft: 1/4 in diameter
  • Dimensions (approx.): Length 4-1/2 in, Width 2-3/4 in, Height 2-1/2 in
  • Construction: Standard multi-plate air-dielectric design with metal frame and insulating supports. Suitable for RF tuning applications.
Exact original model number, manufacturer, and factory voltage data were not available; the voltage rating is derived from the measured plate spacing.
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