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EF Johnson Type E Style 10-49 pF Approximately 2000 Volt Single Section Air Variable Capacitor

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MPN:
EF Johnson
Condition:
Used
Shipping:
$7.00 (Fixed Shipping Cost)
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
  • Genuine E.F. Johnson single-section air variable capacitor measuring 10–49 pF with approximately 1/16-inch plate spacing and 1/4-inch shaft. Compact 4-3/4 × 2-3/4 × 2-5/8 inch size ideal for amateur radio transmitters, receivers, antenna tuners, and RF projects. Durable aluminum plates and steatite insulation provide reliable performance at roughly 2000 V peak. Excellent replacement or upgrade part for classic tube gear and homebrew designs. Clean used condition ready for immediate use.
$14.99
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Description

EF Johnson Type E Style 10-49 pF Approximately 2000 Volt Single Section Air Variable Capacitor

Key Specifications (measured / typical for matching E.F. Johnson construction):
  • Manufacturer: E.F. Johnson
  • Sections: 1
  • Capacitance: 10 pF minimum – 49 pF maximum
  • Plate spacing: approximately 1/16 in (0.062 in)
  • Shaft: 1/4 in diameter
  • Overall dimensions: 4¾ in L × 2¾ in W × 2⅝ in H
  • Approximate peak voltage rating: 2000 V (based on ~0.062 in air gap; typical for Johnson Type E/F-style units with similar spacing)
  • Construction: aluminum plates, steatite insulation, ¼ in shaft (standard for Johnson transmitter/receiver variables of this era)
Exact catalog number (e.g., 154-series Type E such as 50E30/50E45

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