RCA 7591A Mcintosh Amplifier Audio Tubes

( Brand: Rca ), ( Manufacturer Part Number: 7591A ), ( Part Type: Amplifier Tube ), ( Country/region Of Manufacture: United States )

Review RCA 100% Testing Us Made Mcintosh Amplifier Audio Tubes

The RCA 7591A MCintosh Audio Tubes are a set of high-performance vacuum tubes designed for use in MCintosh audio amplifiers. These tubes are the heart of the amplifier circuit, responsible for amplifying the weak electrical signal from the preamplifier into a powerful output that can drive speakers.

The RCA 7591A tubes are designed with a dual triode configuration, which provides both voltage amplification and current amplification in a single tube. Each tube has a screen grid that can be biased positively or negatively to control the amount of signal amplification. This design allows for greater flexibility in amplifier circuit design and improved overall performance.

The tubes have a glass envelope with a metal base and are filled with a noble gas such as neon or argon. These gases provide a stable operating environment for the tubes by preventing the electrons from colliding with the walls of the envelope, which could cause unwanted noise and distortion.

The RCA 7591A tubes have a heater element that warms up the filament, which in turn heats up the cathode and causes it to emit electrons. The filament is typically made of a material such as tungsten or nickel, which can withstand the high temperatures required to operate the tube.

The tubes have a voltage rating of 300 volts and a current rating of 150 milliamperes. They are designed to operate at a plate dissipation of up to 20 watts and have a plate resistance of 2,500 ohms.

The RCA 7591A MCintosh Audio Tubes are known for their warm, rich sound and their ability to deliver detailed, accurate reproduction of music. They are a popular choice among audiophiles and professional audio engineers who demand the highest possible sound quality from their equipment.

These tubes require careful handling and regular maintenance to ensure optimal performance. They should be tested regularly to ensure that they are functioning properly and should be replaced if they show signs of failure such as excessive noise, distortion, or loss of output.

In summary, the RCA 7591A MCintosh Audio Tubes are high-performance vacuum tubes designed for use in MCintosh audio amplifiers. They are known for their warm, rich sound and their ability to deliver detailed, accurate reproduction of music. These tubes require careful handling and regular maintenance to ensure optimal performance.

The RCA 7591A MCintosh amplifier is a vintage audio component known for its high-quality sound. Its use of tubes instead of solid-state components gives it a unique sound signature, which some audiophiles prefer over modern amplifiers. However, like any piece of electronic equipment, there are pros and cons to consider before purchasing its tubes.

1. Tube sound: The RCA 7591A amplifier is renowned for its warm, rich, and detailed sound, which is a result of the tube technology used. Some listeners find this sound more pleasing than the more clinical, neutral sound of solid-state amplifiers.

2. Character: Vintage audio equipment, such as the RCA 7591A, has a certain charm and character that comes from its history and design. Owning and using this amplifier can be a rewarding experience for those who appreciate the aesthetics of vintage technology.

3. Flexibility: Tube amplifiers like the RCA 7591A can be easily modified and customized to suit an individual's preferences. For instance, swapping out tubes can change the sound signature, allowing the user to fine-tune the amplifier to their liking.

1. Cost: Tube amplifiers, and the tubes themselves, can be more expensive than their solid-state counterparts. The RCA 7591A amplifier and its tubes are no exception.

2. Maintenance: Tube amplifiers require more maintenance than solid-state amplifiers. Tubes need to be replaced periodically, and the amplifier itself may require regular alignment and adjustment to ensure optimal performance.

3. Power consumption: Tube amplifiers consume more power than solid-state amplifiers, which can result in higher electricity bills.

4. Size and weight: The RCA 7591A amplifier is a large and heavy piece of equipment, which can make it difficult to transport or find a suitable location in a home or studio.

The RCA 7591A MCintosh amplifier is a high-quality, vintage audio component with a unique sound and character that some audiophiles prefer over modern amplifiers. However, it comes with some drawbacks, such as its high cost, maintenance requirements, power consumption, and size. Ultimately, the decision to purchase the RCA 7591A amplifier and its tubes depends on an individual's preferences, budget, and audio system requirements. If you value the tube sound and the aesthetic appeal of vintage audio equipment, and are willing to accept the added costs and maintenance, then the RCA 7591A amplifier may be an excellent investment for you.

If you are considering purchasing the RCA 7591A MCintosh amplifier and its tubes, it is recommended that you do thorough research on the amplifier and its tubes before making a purchase. Familiarize yourself with the different types of tubes available and their sound characteristics. Also, consider the cost, maintenance requirements, and power consumption of the amplifier, and determine if it fits within your budget and audio system setup. If you are unsure, it may be worthwhile to listen to the amplifier in person or consult with an audio professional for advice.

Details:

Value being 36 so these test 110% Good Luck buying. I no longer ship to China Vietnam due lost packages in Custom's.

part #: 7591a prices

• $90.00-$780.00

specifications vintaelec:

• brand: Rca
• mpn: 7591a
• part type: Amplifier Tube
• country/region of manufacture: United States

seller vintaelec:

• rating: 100.0%
• city: Salem, Oregon
• # reviews: 9888

general vintaelec:

• condition: Open box
• Consumer Electronics > Vintage Electronics > Other Vintage Electronics

shipping vintaelec:

• type: Calculated
• transit: 3-8 Days
• cost: $12.05
• service: USPS Priority Mail
• carrier: USPS
• class: Expedited

offer vintaelec:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: July 7, 2025
• sold: 0

payments vintaelec:

• wallet: Google-pay
• other
• credit card: Diners-club

returns vintaelec:

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

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