RUSSIAN GU-81M Power Pentode 750

( Brand: Russian ), ( Manufacturer Part Number: GU-81M ), ( Type: Russian Power Pentode ), ( Country/region Of Manufacture: Russian Federation )

Review RUSSIAN 750 Watt Power Pentode

The Gu-81M 750 is a Russian-made power pentode vacuum tube, a type of electronic device that has been in use since the early days of radio technology. This tube is a powerful and versatile component, specifically designed for high power audio amplification and RF power applications.

The Gu-81M 750 is a pentode, which means it has five electron tubes in its structure. The primary function of this tube is to amplify radio frequency (RF) signals or audio signals in power amplifiers. It has a plate heater voltage of 6.3V and operates at a plate current of approximately 200mA. The high power rating of 750W indicates its ability to deliver significant power output, making it suitable for high-power audio amplification systems and certain RF applications.

The Gu-81M 750 is known for its robust construction and reliability. It is made from high-quality materials to ensure durability and long-term performance. The tube is designed with a glass envelope that protects the internal components from external influences, such as moisture and air. The tube's filament is made of tungsten, which is known for its resistance to high temperatures and its ability to emit electrons under a low voltage.

The Gu-81M 750 is a versatile tube that can be used in various applications. In audio amplifiers, it can provide a rich, warm sound with good bass and treble response. In RF power amplifiers, it can be used to amplify signals for applications such as radio broadcasting and wireless communication.

In conclusion, the Gu-81M 750 is a high-performance power pentode tube that offers excellent power output and reliability. Its versatility and robust construction make it a valuable component in various electronic applications, from audio amplification to RF power amplification.

1. High Power Output: The Gu-81M 750 is a powerful pentode tube, capable of delivering up to 750 watts of output power, making it suitable for high power audio applications.

2. Wide Frequency Response: The tube has a wide frequency response, making it suitable for both music and speech applications.

3. Durable Construction: The Gu-81M 750 is known for its robust construction and long life, making it a reliable choice for long-term use.

4. Rich Sound: Pentode tubes are known for their rich, warm sound, which can enhance the listening experience.

1. High Power Consumption: Due to its high power output, the Gu-81M 750 consumes a significant amount of power, which can increase your electricity bills.

2. Size and Weight: The tube is larger and heavier than smaller tubes, which can make it difficult to integrate into some audio systems.

3. Limited Availability: The Gu-81M 750 is not as widely available as some other types of tubes, which can make it more expensive and harder to find replacements.

4. Maintenance Requirements: Tube amplifiers, including those using the Gu-81M 750, require regular maintenance to ensure they continue to operate effectively.

The Gu-81M 750 Russian Power Pentode is a powerful and reliable tube that can deliver rich, warm sound. However, its high power consumption, size and weight, limited availability, and maintenance requirements are important considerations. If you're looking for a tube amplifier for high power audio applications and are willing to deal with these drawbacks, the Gu-81M 750 could be a good choice. However, if you're looking for a more compact or easily available option, there may be other tubes that better meet your needs.

I would recommend the Gu-81M 750 Russian Power Pentode to those who are looking for a high power tube for audio applications and are willing to deal with its drawbacks. If you're unsure, I would recommend doing further research or consulting with an audio expert to help you make an informed decision.

Details:

Their filament voltage is from 11. These tubes have good filaments, and doing some testing found that they both emission output very close to each other. 4 volts with a tap.

Their part number is GU-81M. Up for grabs are a pair of Russian 750 watt power pentode.

I will include complete data sheets on these tubes.

part #: gu81m prices

• $109.73-$350.00

specifications tubesocketvintagego:

• brand: Russian
• mpn: Gu-81m
• type: Russian Power Pentode
• country/region of manufacture: Russian Federation

Seller tubesocketvintagego:

• city: East Carbon, Utah
• zipcode: 84520

Offer tubesocketvintagego:

• : true
• Sold: 0
• Started: September 24, 2017, 3:08 pm
• quantity: 1
• min. bid: $124.95
• bids: 0
• best offer: false

General tubesocketvintagego:

• in stock: Yes
• consumer electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio

Shipping tubesocketvintagego:

• cost: $0.0
• handling: 3 days
• type: Flat

Payments tubesocketvintagego:

• PayPal

Returns tubesocketvintagego:

• details: Restocking fee: No
• time: 14 Days
• type: Money Back
• policy: returns accepted
• paid by: Buyer

Ratings:

1. Exactly as described. Thank you. 08-19-17
2. Great buyer, immediate payment! Shop Knoxfinds again! 09-19-17
3. Thank you for an easy, pleasant transaction. Excellent buyer.. 09-07-17
4. Quick response and fast payment. Perfect! THANKS!! 09-01-17
5. Item as described, well packed and quickly shipped. Thank you! 5 star seller! 09-07-17

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