RCA 12AU6 Valves Radio Vacuum Amplifier Tubes 8426A HF94

( Brand: Rca ), ( Model: 12AU6 8426A ), ( Country/region Of Manufacture: United States ), ( Product Type: Vacuum Tubes )

Review RCA Lot Valves Tested Vintage Radio Vacuum Amplifier Tubes

The 8426A 12AU7 RCA radio vacuum tubes are a must-have for any vintage or classic audio enthusiast. These tubes are designed specifically for use in RCA radio receivers, amplifiers, and other high-fidelity audio equipment.

The 8426A 12AU7 tubes are dual triode vacuum tubes, which means they have two independent triode sections within the same glass envelope. This design allows for more versatility and flexibility in audio applications, as each section can be used for different functions such as amplification, mixing, or phase inversion.

These tubes are made using high-quality materials and manufacturing processes to ensure excellent performance and reliability. The glass envelope is made from thick, durable borosilicate glass, which is resistant to shock and heat. The filaments are made from high-purity tungsten, which provides a long and stable filament life.

The 8426A 12AU7 tubes have a rated plate voltage of 300V and a rated plate current of 120mA. They are designed to operate at a filament voltage of 6.3V and a filament current of 50mA. They have a frequency response of 100Hz to 100kHz, making them ideal for use in AM/FM radio receivers and audio amplifiers.

The sound quality produced by the 8426A 12AU7 tubes is warm, rich, and detailed. They have a smooth and natural sound that is free from harshness or distortion. They also have excellent dynamic range, which means they can handle both soft and loud sounds with equal ease.

In summary, the 8426A 12AU7 vacuum tubes are a high-quality and versatile option for any classic audio enthusiast. They are well-suited for use in RCA radio receivers and amplifiers, and their warm, rich sound and excellent dynamic range make them a great choice for anyone who wants to experience the classic sound of vacuum tube audio.

1. Authenticity: These tubes are original 8426A 12AU7 tubes, which can provide a more genuine sound compared to modern replacements.

2. Improved sound quality: The 8426A tubes are known for their smooth and warm sound, which can enhance the overall listening experience on an HF94 amplifier.

3. Vintage appeal: Using original tubes can add a touch of vintage charm to the radio, making it a unique and collectible piece.

1. Cost: Original 8426A tubes can be expensive due to their scarcity and demand.

2. Limited availability: Finding original 8426A tubes can be challenging, as they are not produced anymore.

3. Maintenance: Tubes require regular maintenance and replacement, which can be time-consuming and costly.

While the 8426A 12AU7 tubes can improve the sound quality and vintage appeal of an HF94 amplifier, the high cost and limited availability may make them impractical for some users. It is essential to weigh the benefits against the drawbacks and consider alternative options, such as modern replacements or refurbished tubes, to ensure the best value for your investment.

If you are looking to enhance the sound quality of your HF94 amplifier, I would recommend considering refurbished 8426A tubes as an alternative to new, original tubes. Refurbished tubes have been inspected, tested, and restored to their original specifications, providing a cost-effective alternative to new tubes without sacrificing sound quality. Just be sure to purchase from a reputable seller to ensure the tubes are in good condition and meet your needs.

Details:

Up for offer are seven 7 12AU6 Rca used vintage vacuum tubes. Those vacuum tubes were made in USA as indicated on the tube. I tested tubes on my calibrated encore mighty mite tube tester, which shows them strong and in new condition.

part #: 12au6 prices

• $8.88-$23.99

specifications tubesocketvintagego:

• brand: Rca
• model: 12au6 8426a
• country/region of manufacture: United States
• product type: Vacuum Tubes

Ratings:

1. ok 03-05-15
2. all good, thankyou! 03-05-15
3. A++++++++++ 03-05-15
4. item as described 03-05-15

Offer:

• # bids: 0
• # Sold: 0
• Started: March 6, 2015, 5:05 am
• best offer: true
• quantity: 1

Seller:

• zipcode: 15642
• city: Irwin, Pennsylvania

General:

• in stock: Yes
• Consumer Electronics > Vintage Electronics > Vintage Audio & Video > Vintage Parts & Accessories > Vintage Tubes & Tubes Sockets

Payments:

• PayPal

Returns:

• time: 60 Days
• type: Money Back
• policy: returns accepted
• paid by: Buyer

Shipping:

• cost: $3.94
• handling: 1 days
• type: Calculated

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