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Air Variable Capacitors with Brass Plate 23 to 562 pF 1000 Volt Single Section

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Condition:
Used
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  • Unmarked single-section brass-plate air variable capacitor, 23–562 pF, approximately 1000 V peak rating. Compact multi-plate design with ~1/64-inch plate spacing and 1/4-inch shaft. Measures about 3-1/2 × 3-1/2 × 3-7/8 inches. Ideal for amateur radio receivers, restoration projects, or RF tuning applications needing a high-capacitance low-voltage component.
  • Unmarked single-section brass-plate air variable capacitor, 23–562 pF, approximately 1000 V peak rating. Compact multi-plate design with ~1/64-inch plate spacing and 1/4-inch shaft. Measures about 3-1/2 × 3-1/2 × 3-7/8 inches. Ideal for amateur radio receivers, restoration projects, or RF tuning applications needing a high-capacitance low-voltage component.
  • Unmarked single-section brass-plate air variable capacitor, 23–562 pF, approximately 1000 V peak rating. Compact multi-plate design with ~1/64-inch plate spacing and 1/4-inch shaft. Measures about 3-1/2 × 3-1/2 × 3-7/8 inches. Ideal for amateur radio receivers, restoration projects, or RF tuning applications needing a high-capacitance low-voltage component.
  • Unmarked single-section brass-plate air variable capacitor, 23–562 pF, approximately 1000 V peak rating. Compact multi-plate design with ~1/64-inch plate spacing and 1/4-inch shaft. Measures about 3-1/2 × 3-1/2 × 3-7/8 inches. Ideal for amateur radio receivers, restoration projects, or RF tuning applications needing a high-capacitance low-voltage component.
$19.99
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Description

Air Variable Capacitors with Brass Plate 23 to 562 pF 1000 Volt Single Section

Key Specifications:
  • Brand: Unknown / Unmarked
  • Model: Unknown
  • Sections: 1 (single-section)
  • Capacitance: 23 pF minimum to 562 pF maximum
  • Plate spacing: Approximately 1/64 in (0.0156 in)
  • Estimated voltage rating: ~1000 V peak (standard ARRL Handbook guideline for ~0.015 in air-gap spacing; practical RF rating for receiving or low-power use)
  • Shaft: 1/4 in diameter
  • Dimensions (approx.): Length 3-1/2 in, Width 3-1/2 in, Height 3-7/8 in
  • Construction: Compact multi-plate air-dielectric design with brass plates, metal frame, and insulating supports. High plate count for elevated maximum capacitance. Typical of mid-century receiver-style tuning capacitors.
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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