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  3. JOHNSON 149-10-6

JOHNSON 149-10-6 Tuning Capacitor Shaft E.f. 12-266

149-10-6 Johnson E.f. Variable Tuning Capacitor 12-266 Pf 5 Inch Shaft

( Brand: Johnson ), ( Manufacturer Part Number: 149-10-6 ), ( Part Type: Capacitor )

Review JOHNSON E.f. Variable Tuning Capacitor Pf Inch Shaft

The Johnson 149-10-6 EF tuning capacitor is a high-performance component designed for use in radio frequency (RF) circuits, particularly in applications requiring tuning or matching functions. This capacitor boasts an EF series construction, which offers excellent stability and minimal insertion loss.

This tuning capacitor has a capacitance range of 12 to 266 picofarads (pF) and is characterized by a shaft design. The shaft allows for easy adjustment of the capacitance value, making it an ideal choice for applications where precise tuning is necessary.

The Johnson 149-10-6 EF tuning capacitor is constructed with high-quality dielectric materials, ensuring reliable and stable performance even under various operating conditions. Its low loss tangent ensures minimal energy is wasted as heat, contributing to improved efficiency in RF circuits.

This tuning capacitor features a robust design with a silver-plated brass body and a ceramic knob. The silver-plated contacts provide excellent electrical conductivity and resistance to corrosion, ensuring long-lasting performance. The ceramic knob offers a comfortable grip for precise tuning adjustments.

Additionally, the Johnson 149-10-6 EF tuning capacitor is compact in size, making it suitable for applications where space is limited. Its versatile application range covers various RF circuits, including amplifiers, oscillators, and filters.

In summary, the Johnson 149-10-6 EF tuning capacitor is a high-performance, compact, and easy-to-use component designed for precise tuning in RF circuits. Its robust construction, excellent stability, and minimal insertion loss make it a reliable and efficient choice for various applications.

The Johnson 149-10-6 EF tuning capacitor 12-266 pf shaft is a specialized component used in radio frequency (RF) circuits for tuning and matching purposes. This capacitor type is characterized by its large value and high precision. Here are some potential pros and cons of purchasing this specific capacitor:

Pros:

1. High Precision: This capacitor provides a high degree of precision in RF circuits due to its large value and EF design.

2. Wide Frequency Range: The capacitor's large value allows it to cover a wide frequency range, making it a versatile component for various RF applications.

3. Robust Design: Johnson Capacitors are known for their robust design and high-quality materials, ensuring reliable operation under various conditions.

Cons:

1. Cost: The Johnson 149-10-6 EF tuning capacitor is a high-end component, and its cost may be prohibitive for some applications.

2. Size: The large value of the capacitor results in a larger physical size, which may not be suitable for compact RF circuits.

3. Complexity: Installing and integrating a large, high-precision capacitor into an RF circuit can be complex and time-consuming.

In conclusion, the Johnson 149-10-6 EF tuning capacitor 12-266 pf shaft offers significant benefits for RF circuits requiring high precision and a wide frequency range. However, its high cost, larger size, and complexity may make it less suitable for some applications. Ultimately, the decision to purchase this capacitor depends on the specific requirements and budget of the RF project.

If high precision and a wide frequency range are essential for the RF circuit, the Johnson 149-10-6 EF tuning capacitor is an excellent choice. However, if cost and size are major concerns, alternative capacitor types or designs may be more suitable. Careful consideration of the application requirements and available alternatives should guide the final purchasing decision.

Details:

Counted 17 plates on the rotor. Shaft is in diameter. Excellent condition. I measured 12-266 pf with my LCR meter.

This is an E.F. Johnson 149-10-6 Variable Tuning Capacitor.

part #: 149106 price

  • $41.25

specifications vintacapacitor:

  • brand: Johnson
  • mpn: 149-10-6
  • part type: Capacitor

offer vintacapacitor:

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  • started: May 18, 2026
  • quantity: 1
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  • Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors

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part type: capacitor,
category: electronics > vintage audio video > vintage parts accessories > vintage capacitors, sku: 1991141341630008,

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1 offer $41.25 USD
  • Offer #1: $41.25 price + $6.72 shipping estimate = $47.97* total. Excellent condition. This is an E.F.+$6.72 shipping

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