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Cardwell Model 429-8, 20-155 pF 1000V Single Section Air Variable Capacitor

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MPN:
429-8
Condition:
Used
Shipping:
$8.00 (Fixed Shipping Cost)
  • Cardwell 429-8 single-section air variable capacitor. Measured range approximately 20–155 pF with ~1/32″ plate spacing and estimated 1000 V peak rating. Rugged USA-made Cardwell unit with 1/4″ shaft, ideal for HF amplifiers, antenna tuners, or radio restoration. Measures about 5.4″ long × 3″ wide. Excellent condition for age. Perfect for ham radio builders seeking authentic Cardwell surplus components.
  • Cardwell 429-8 single-section air variable capacitor. Measured range approximately 20–155 pF with ~1/32″ plate spacing and estimated 1000 V peak rating. Rugged USA-made Cardwell unit with 1/4″ shaft, ideal for HF amplifiers, antenna tuners, or radio restoration. Measures about 5.4″ long × 3″ wide. Excellent condition for age. Perfect for ham radio builders seeking authentic Cardwell surplus components.
  • Cardwell 429-8 single-section air variable capacitor. Measured range approximately 20–155 pF with ~1/32″ plate spacing and estimated 1000 V peak rating. Rugged USA-made Cardwell unit with 1/4″ shaft, ideal for HF amplifiers, antenna tuners, or radio restoration. Measures about 5.4″ long × 3″ wide. Excellent condition for age. Perfect for ham radio builders seeking authentic Cardwell surplus components.
  • Cardwell 429-8 single-section air variable capacitor. Measured range approximately 20–155 pF with ~1/32″ plate spacing and estimated 1000 V peak rating. Rugged USA-made Cardwell unit with 1/4″ shaft, ideal for HF amplifiers, antenna tuners, or radio restoration. Measures about 5.4″ long × 3″ wide. Excellent condition for age. Perfect for ham radio builders seeking authentic Cardwell surplus components.
  • Cardwell 429-8 single-section air variable capacitor. Measured range approximately 20–155 pF with ~1/32″ plate spacing and estimated 1000 V peak rating. Rugged USA-made Cardwell unit with 1/4″ shaft, ideal for HF amplifiers, antenna tuners, or radio restoration. Measures about 5.4″ long × 3″ wide. Excellent condition for age. Perfect for ham radio builders seeking authentic Cardwell surplus components.
$24.99
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Description

Cardwell Model 429-8, 20-155 pF 1000V Single Section Air Variable Capacitor

Key Specifications:
  • Capacitance: Approximately 20 pF minimum to 155 pF maximum consistent with Cardwell single-section units in the 10–150/160 pF range).
  • Voltage rating: Approximately 1000–1500 V peak (based on the ~1/32″ / 0.031″ plate spacing typical of Cardwell mid-size variables; exact catalog rating for the 429-8 suffix not separately published, but matches standard single-spaced designs of this size).
  • Plate spacing: Approximately 1/32″ (0.031″).
  • Shaft: 1/4″ diameter.
  • Dimensions: Length ≈5⅜″, width 3″, height 2⅜″ (matches mid-size Cardwell single-section frames).
  • Construction: Single-section air dielectric, typical Cardwell metal-frame design with soldered plates, suitable for RF tuning or low-to-medium power applications.
These are durable USA-made Cardwell variables commonly used in amateur radio and commercial RF equipment.
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