HAMMARLUND 48B309 Ham Radio Cap Air Capacitor

( Brand: Hammarlund ), ( Manufacturer Part Number: 48B309 ), ( Non-domestic Product: No ), ( Type: Variable Capacitor ), ( Capacitor Construction: Air ), ( Material: Metal, Porcelain ), ( Country/region Of Manufacture: United States )

Review HAMMARLUND Ham Radio Cap Silver Plated Section Variable Air Capacitor

The Hammarlund 48B309 is a high-performance air capacitor specifically designed for use in ham radio applications. This capacitor, with its distinctive red and silver finish, boasts a robust and reliable construction that ensures optimal RF performance.

Measuring 3.2 inches in diameter and 2.5 inches in height, this capacitor provides a capacitance value of 3000 microfarads at 150 volts. Its large capacity makes it an ideal choice for use in RF power amplifiers and transmitter circuits where large capacitance values are required.

The Hammarlund 48B309 is constructed using a high-quality aluminum housing, which not only provides an attractive appearance but also offers excellent heat dissipation properties. The capacitor's large surface area allows for efficient cooling, ensuring stable and consistent performance even during long operating periods or under heavy load conditions.

The capacitor features a durable, low-loss air dielectric, which minimizes energy loss and ensures a high Q factor for improved efficiency and better RF performance. This dielectric is also resistant to moisture and other environmental contaminants, ensuring reliable operation in a variety of conditions.

The Hammarlund 48B309 is designed with a high voltage rating of 150 volts, providing ample headroom for most ham radio applications. It is also capable of handling high currents, making it suitable for use in demanding RF power amplifier circuits.

This capacitor is equipped with a sturdy, locking terminal post design that ensures secure connection and reliable operation. The large, easy-to-grip terminals make installation and maintenance simple and straightforward.

In summary, the Hammarlund 48B309 is a high-performance air capacitor that delivers reliable and consistent RF performance for ham radio applications. Its robust construction, large capacity, efficient cooling, and high voltage rating make it an indispensable component for RF power amplifiers and transmitter circuits.

The Hammarlund 48B309 is a popular ham radio air capacitor known for its high-quality construction and reliable performance. Here are some pros and cons of buying this capacitor:

1. High-quality construction: The Hammarlund 48B309 is built with high-grade materials and precise manufacturing techniques, ensuring durability and long-lasting performance.

2. Wide range of capacitance: This capacitor offers a wide range of capacitance values (from 10pF to 3000pF), making it a versatile option for various ham radio applications.

3. Low loss: The Hammarlund 48B309 has a low loss characteristic, which means that it minimizes energy dissipation and reduces distortion, resulting in clearer and more efficient radio transmissions.

4. Easy to use: The capacitor is easy to install and use, with clear markings on the body indicating the capacitance value.

1. Expensive: Compared to other capacitors in the market, the Hammarlund 48B309 can be quite expensive, which might be a deterrent for some ham radio enthusiasts.

2. Large size: The capacitor has a relatively large size, which might make it difficult to fit in small ham radio setups or mobile applications.

In conclusion, the Hammarlund 48B309 is a high-quality air capacitor with a wide range of capacitance values, low loss, and easy-to-use design. However, its high price point and large size might be drawbacks for some ham radio enthusiasts.

If you are looking for a reliable and versatile capacitor for your ham radio setup and have the budget for it, the Hammarlund 48B309 is an excellent choice. However, if you are on a tight budget or have limited space in your ham radio setup, you might want to consider other options in the market. Overall, the Hammarlund 48B309 is a recommended option for serious ham radio enthusiasts who prioritize high performance and durability.

Details:

Is marked with 3-35 pf Untested. Thanks I have more ham radio stuff available. Has brackets attached from previous device I assume. Item is preowned/used.

Please see all photos. I have several different air variable capacitors like this in many sizes. Its in fully functional condition with some signs of age/wear. I also have lots of different ham radio stuff listed.

part #: 48b309 price

• $22.00

specifications capacitorelectron:

• brand: Hammarlund
• mpn: 48b309
• non-domestic product: No
• type: Variable Capacitor
• capacitor construction: Air
• material: Metal, Porcelain
• country/region of manufacture: United States

payments capacitorelectron:

• credit card: Mastercard
• wallet: Apple-pay
• other

offer capacitorelectron:

• sold: 0
• started: April 25, 2025
• availability: In Stock
• options: Ship-to-home
• quantity: 1

returns capacitorelectron:

• paid by: Buyer
• time: 14 Days
• policy: Returns Accepted
• method: Money back

general capacitorelectron:

• Electrical Equipment Supplies > Electronic Components Semiconductors > Capacitors
• condition: Used

shipping capacitorelectron:

• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• type: Calculated
• transit: 5-12 Days
• cost: $7.15

seller capacitorelectron:

• city: Cincinnati, Ohio
• # reviews: 591
• rating: 100.0%

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