WESTERN ELECTRIC 21AK Capacitors 289D 3.2UFX2 139A .5UF 139C 1UF

( Brand: Western Electric ), ( Manufacturer Part Number: 21AK ), ( Model: 289D, 139A, 139C, 21AK ), ( Part Type: Capacitor ), ( Country Of Origin: United States )

Review WESTERN ELECTRIC Capacitors 3.2ufx2 139a 2uf .5uf 1uf

The Western Electric 21AK capacitor series is a legendary line of electrolytic capacitors known for their superior audio performance and reliability. These capacitors were originally designed and manufactured by Western Electric for use in high-fidelity audio equipment during the mid-20th century. Today, they are highly sought after by audiophiles and electronics enthusiasts for use in various applications, including vintage audio equipment restoration and high-end audio systems.

The 21AK capacitor series includes several values, and we will focus on the following specific capacitors: 289D 3.2uFx2, 139A 2uf, 5uf 139C, and 1uf. The capacitor values are indicated in microfarads (uF) and farads (F), with the multiples (x2, x5) denoting the physical size and capacity of the capacitor.

The 289D 3.2uFx2 capacitor is a dual-element capacitor, meaning it consists of two individual capacitors connected in parallel to double the capacity. With a voltage rating of 300V, this capacitor can handle a substantial electrical charge and is suitable for use in power supplies, filter circuits, or audio applications that require large capacitance. Its electrolytic construction allows it to store and release electrical energy efficiently, making it an excellent choice for applications that require quick power delivery or voltage stabilization.

The 139A 2uf capacitor is another dual-element capacitor with a voltage rating of 250V. It offers a capacity of 2 microfarads and is often used in audio circuits to provide smoothing and filtering functions. Its high power rating and low equivalent series resistance (ESR) make it suitable for applications that require low impedance and quick response times.

The 5uf 139C capacitor is a single-element capacitor with a voltage rating of 250V and a capacity of 5 microfarads. It is commonly used in power supplies and filter circuits to store and release energy efficiently. Its low ESR and high power rating make it an excellent choice for applications that require quick power delivery and voltage stabilization.

The 1uf capacitor is a single-element capacitor with a voltage rating of 350V and a capacity of 1 microfarad. It is often used in various electronic circuits, including audio circuits, to provide filtering and coupling functions. Its high voltage rating makes it suitable for use in applications that require a higher voltage rating than standard capacitors.

All of these Western Electric 21AK capacitors are renowned for their excellent sonic qualities, which make them popular choices in high-end audio applications. They offer low impedance, quick response times, and high power handling capabilities. Their robust construction, using high-quality materials and precise manufacturing techniques, ensures their long-term reliability and stability. Additionally, their vintage appearance and historical significance make them highly collectible and desirable among audio enthusiasts.

The Western Electric 21AK capacitors (models 289D 3.2uF x2 139A 2uf 5uf 139C 1uf) are popular among audio enthusiasts and electronic hobbyists due to their high-quality electrolytic capacitors. These capacitors are known for their long-lasting performance, low equivalent series resistance (ESR), and low impedance, which are desirable characteristics for various applications, particularly in audio circuits.

1. Superior Sound Quality: Western Electric 21AK capacitors are widely recognized for their excellent sound quality in audio applications. These capacitors provide a more natural and accurate sound reproduction compared to other capacitors.

2. Long-lasting Performance: These capacitors are known for their durability and long-term reliability. They can withstand high temperatures and voltages, making them suitable for various applications.

3. Low ESR and Impedance: The Western Electric 21AK capacitors have very low ESR and impedance, which reduces power loss and improves the overall efficiency of the circuit.

4. Consistent Performance: These capacitors have a consistent performance across different temperatures and voltages, ensuring stable and reliable operation.

1. Cost: Western Electric 21AK capacitors are relatively expensive compared to other capacitor brands. This can be a significant barrier for hobbyists and those on a tight budget.

2. Availability: These capacitors are no longer in production, and obtaining them can be challenging. They are primarily found on the secondary market, where prices can vary significantly.

3. Size: These capacitors are larger than their modern counterparts, which can make it difficult to fit them into smaller enclosures or projects.

The Western Electric 21AK capacitors offer superior sound quality, long-lasting performance, and consistent reliability, making them an excellent choice for various applications, particularly in audio circuits. However, their high cost, limited availability, and larger size can be significant drawbacks for some users.

If you are looking for high-quality capacitors for audio applications and have a budget for it, the Western Electric 21AK capacitors are an excellent investment. However, if you are on a tight budget or prefer smaller capacitors, there are other options available in the market that offer similar performance characteristics but at a lower price point. It's essential to consider your specific requirements and constraints before making a purchasing decision.

Details:

Here are six 6 VINTAGE WESTERN ELECTRIC capacitors and assortment of silver mica removed from Western Electric equipment. Three 139C two section 1uf. All are used and removed from Western Electric equipment not tested. 289D two section 3.2uf.

part #: 21ak prices

• $199.95-$300.00

specifications vintacapacitor:

• brand: Western Electric
• mpn: 21ak
• model: 289d, 139a, 139c, 21ak
• part type: Capacitor
• country of origin: United States

seller vintacapacitor:

• city: North Tonawanda, New York
• # reviews: 1025
• rating: 100.0%

shipping vintacapacitor:

• transit: 4-8 Days
• type: Calculated
• carrier: USPS, FedEx
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• cost: $8.65
• class: Standard

payments vintacapacitor:

• credit card: Discover
• wallet: Paypal
• other

returns vintacapacitor:

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

general vintacapacitor:

• condition: Used
• Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors

offer vintacapacitor:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: March 5, 2026

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