RCA 12BR7 Radiotron Electron Tube Box

( Brand: Rca ), ( Manufacturer Part Number: 12BR7 ), ( Part Type: Tube Box ), ( Country/region Of Manufacture: United States )

Review RCA Radiotron Electron Tube New In Box Old Stock

The RCA 12BR7 is a high-performance radio tube, specifically designed for use in various applications such as radio receivers, television sets, and amplifiers. This vacuum tube, also known as an electron tube or valve, is a crucial component in the circuitry that amplifies and rectifies electrical signals to produce sound or images.

The RCA 12BR7 is a pentode tube, which means it has five terminals: cathode, anode, grid 1, grid 2, and plate. The tube's cathode emits electrons that are controlled by the grids and accelerated towards the anode to amplify the electrical signal. The plate collects the amplified electrons, delivering a much stronger output to the circuit.

This tube operates at a filament voltage of 6.3 volts and 1.3 amps, and its heater consumes approximately 45 watts. It has a plate voltage range of 200 to 300 volts, making it suitable for use in medium power applications. The RCA 12BR7 can handle a maximum plate current of 150 milliamperes and a maximum plate dissipation of 1.5 watts.

In terms of electrical characteristics, the RCA 12BR7 offers a high plate current gain of approximately 120 and a low plate resistance of around 150 ohms at a plate voltage of 250 volts. Its grid 1 and grid 2 resistances are 2.2 megohms and 2 megohms, respectively.

The RCA 12BR7 is manufactured to meet the highest standards of quality and reliability. It is enclosed in a durable glass and metal envelope with a metal base, ensuring its ability to withstand the rigors of continuous use. This tube is a must-have for hobbyists, audio enthusiasts, and professionals in the field of electronics and communications.

In summary, the RCA 12BR7 is a versatile and powerful vacuum tube, designed for use in various electronic applications where high-quality amplification and rectification are essential. With its robust construction, excellent electrical characteristics, and wide voltage range, it is a reliable and trusted component in the world of electronics.

RCA 12BK7 Radio Tube Buyer's Guide: Pros, Cons, and Conclusion

The RCA 12BK7 is a popular vacuum tube used in various electronic applications, particularly in radio and television circuits. This guide aims to help potential buyers make informed decisions by presenting the pros, cons, and a conclusion regarding the purchase of an RCA 12BK7 radio tube.

1. Versatility: The RCA 12BK7 tube can be used in a wide range of applications, including radio receivers, television sets, and audio amplifiers.

2. Availability: This tube is readily available in the market, both new and used, making it an accessible choice for hobbyists and professional repairers.

3. Long Life Span: With proper handling and maintenance, the RCA 12BK7 tube can last for an extended period.

4. Warm, Tubey Sound: The RCA 12BK7 tube is known for producing a desirable warm and tubey sound in audio applications.

1. Fragility: Vacuum tubes, including the RCA 12BK7, are delicate components. Improper handling can lead to damage, reducing their functionality and lifespan.

2. Power Consumption: The RCA 12BK7 tube consumes more power than its solid-state counterparts, which can lead to increased energy costs and larger power supplies.

3. Size and Weight: The vacuum tube is larger and heavier than modern solid-state components, which can be a drawback for those with limited space and weight considerations.

4. Maintenance: Vacuum tubes require regular maintenance, including alignment, filament replacement, and vacuum pumping, which can be time-consuming and expensive.

The RCA 12BK7 radio tube offers a unique combination of versatility, availability, long lifespan, and desirable sound quality. However, it comes with the drawbacks of fragility, power consumption, size and weight, and maintenance requirements.

Ultimately, whether or not to buy an RCA 12BK7 tube depends on the specific application, budget, and personal preferences. If you value the warm, tubey sound and are willing to invest in proper maintenance, the RCA 12BK7 may be an excellent choice. However, if you require a more robust, energy-efficient, and low-maintenance component, you may want to consider solid-state alternatives.

If you decide to purchase an RCA 12BK7 radio tube, ensure you obtain it from a reputable supplier to ensure its authenticity and quality. Properly handle and store the tube to prevent damage. If you are new to vacuum tube technology, consider seeking expert advice from a professional technician or hobbyist community to ensure you make the most of your investment.

Details:

RCA 12BR7 Radiotron Electron Tube Vacuum tube Old Stock New in box Original Vintage package Please see all the pictures. They are part of the.

part #: 12br7 prices

• $6.27-$21.99

specifications vintaelec:

• brand: Rca
• mpn: 12br7
• part type: Tube Box
• country/region of manufacture: United States

shipping vintaelec:

• transit: 4-8 Days
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• type: Calculated
• cost: $7.00

payments vintaelec:

• credit card: MasteRcard
• wallet: Paypal
• other

general vintaelec:

• condition: New
• Consumer Electronics > Vintage Electronics > Other Vintage Electronics

returns vintaelec:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
• paid by: Buyer

seller vintaelec:

• # reviews: 1895
• city: Stuart, Iowa
• rating: 100.0%

offer vintaelec:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: February 28, 2025
• best offers: True
• quantity: 1

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