RCA 865-874 Tubes Transmiting Tetrode Voltage Regulator

( Brand: Rca ), ( Model: 865-874 ), ( Type: Vacuum Tubes )

Review RCA 865 Tubes Transmiting Tetrode 874 Voltage Regulator

The 865-874 RCA tubes are a pair of vintage electronic components, each serving unique yet interdependent functions in an older radio or television system. The 865 tube is a tetrode vacuum tube, specifically designed for use as an amplifying device. It's characterized by its high power output and efficiency, making it ideal for use in the final stages of audio amplification. The 865 tube can deliver up to 12 watts of audio power, providing a rich, full-bodied sound that's hard to replicate with modern solid-state components.

The 874 tube, on the other hand, serves as a voltage regulator in the power supply of the amplifier circuit. It ensures a stable and consistent voltage is supplied to the 865 tubes, maintaining their performance and preventing damage from voltage fluctuations. The 874 tube is a high-voltage rectifier, capable of handling voltages up to 350 volts. Its robust construction and high reliability make it a reliable choice for maintaining the stability of the power supply.

Together, the 865-874 RCA tubes form a critical part of a vintage radio or television system, delivering a unique sound and character that's hard to find in modern electronics. They require careful handling and maintenance, as they are delicate vacuum tubes, but the rewards of their performance make the effort worthwhile. If you're a collector, restorer, or enthusiast of vintage electronics, the 865-874 RCA tubes are a must-have addition to your collection.

1. Authentic Vintage Sound: These tubes are known for their warm, rich, and authentic sound that is often preferred by audiophiles for vintage radio and amplifier systems.

2. Durable and Long-Lasting: Tubes have a long lifespan and can last for many years with proper care and maintenance.

3. Easily Available: These tubes are widely available on the market, making it easy to find replacements if needed.

4. Cost-Effective: While the initial investment may be higher than solid-state components, tubes can be more cost-effective in the long run due to their durability and longevity.

1. Limited Compatibility: These tubes are only compatible with certain vintage radio and amplifier systems, limiting their versatility.

2. Requires More Maintenance: Tubes require regular cleaning and alignment to maintain optimal performance, which can be time-consuming and require specialized tools.

3. Higher Power Consumption: Tubes consume more power than solid-state components, which can result in higher electricity bills.

4. Sensitivity to Humidity and Temperature: Tubes are sensitive to changes in humidity and temperature, which can affect their performance and lifespan.

If you have a vintage radio or amplifier system that is designed for tubes, then the 865-874 RCA tubes are a great investment. They offer a rich, warm sound that is preferred by many audiophiles. However, it's important to consider the cons, such as the limited compatibility, maintenance requirements, higher power consumption, and sensitivity to temperature and humidity. If you are willing to put in the time and effort to maintain the tubes, then they can be a cost-effective and long-lasting solution.

If you are interested in buying 865-874 RCA tubes, I recommend doing your research to ensure that they are compatible with your vintage radio or amplifier system. Also, be prepared to invest the time and effort required to maintain the tubes to ensure optimal performance. If you are unsure about whether to use tubes or solid-state components, I recommend trying both to see which one you prefer. Ultimately, the choice between tubes and solid-state components comes down to personal preference and the specific requirements of your audio system.

Details:

Sold as-is for parts or repair only. They look new but not certain, please at the pictures for condition. This is for 2 tubes 1 x Rca 865 tube transmiting tetrode 1 874 voltage regulator both nice tubes not tested, no boxes and clearing out some things so need to sell.

part #: 865874 prices

• $6.53-$195.00

specifications tubesocketvintagego:

• brand: Rca
• model: 865-874
• type: Vacuum Tubes

Payments tubesocketvintagego:

• PayPal

Returns tubesocketvintagego:

• policy: no returns

General tubesocketvintagego:

• in stock: Yes
• Vintage Parts Accessories > Vintage Tubes Tube Sockets

Ratings:

1. Thank you for an easy, pleasant transaction. Excellent buyer.. 10-20-18
2. Good buyer, prompt payment, valued customer, highly recommended. 10-18-18

Seller tubesocketvintagego:

• rating 10-21-18: 100.0%
• city: Warner, New Hampshire
• # feedbacks 10-21-18: 609
• zipcode: 03278

Shipping tubesocketvintagego:

• handling: 3 days
• type: Calculated
• cost: $4.1

Offer tubesocketvintagego:

• quantity: 1
• best offer: false
• Started: October 21, 2018, 3:29 pm
• Sold: 0
• bids: 0
• min. bid: $19.99

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