AMPEREX 4-125A Classic Tetrode Vhf Transmitting Beam

( Brand: Amperex ), ( Part Type: Beam ), ( Country/region Of Manufacture: Netherlands )

Review AMPEREX Holland Classic Tetrode Vhf Transmitting Beam

The 4-125A Amplerex Classic Tetrode VHF Transmitting Beam is a high-performance vacuum tube amplifier that is ideally suited for use in VHF radio transmitters. This classic tetrode tube, with its four active elements, is known for its excellent gain and linearity, making it an excellent choice for applications where high-quality audio transmission is required.

The 4-125A tube is a dual-triode design, with two sets of triode elements connected in parallel. Each triode element consists of a control grid, a plate, and a cathode, which allows for a high degree of control over the amplification process. The tetrode configuration further enhances the tube's performance by reducing internal interference and improving efficiency.

The 4-125A Amplerex Classic Tetrode VHF Transmitting Beam is designed to operate at a voltage of 300V and a current of 125A. It has a plate resistance of 100 ohms, which allows it to deliver a maximum output power of 100 watts. The tube's frequency response is from 50MHz to 250MHz, making it ideal for use in VHF FM radio transmitters, as well as in other applications such as amateur radio, television broadcasting, and satellite communications.

The tube's construction is robust and durable, with a high-quality glass envelope that is resistant to shock and vibration. The filament is made of a long-lasting material, ensuring that the tube has a long lifespan. The tube's metal base is designed for easy mounting, and it has a built-in transformer that provides the necessary voltage and current for operation.

Overall, the 4-125A Amplerex Classic Tetrode VHF Transmitting Beam is a high-quality vacuum tube amplifier that delivers excellent performance and reliability. Its classic tetrode design, combined with its high power output and wide frequency response, makes it an ideal choice for VHF radio transmitters and other high-performance applications.

1. Authenticity and History: The Ampex Classic Tetrode VHF Transmitting Beam is a vintage piece of equipment with a rich history in broadcasting and communications. It may appeal to collectors and enthusiasts who value historical artifacts.

2. Sound Quality: Tetrode vacuum tubes, such as the one used in this Ampex beam, are known for their warmth and richness in sound. This could provide a unique and distinctive audio quality that is not available with modern solid-state equipment.

3. Durability and Reliability: Vacuum tubes have been around for decades and have proven to be durable and reliable, especially when properly maintained. The Ampex Classic Tetrode VHF Transmitting Beam, being a well-known brand, is likely to be built with high-quality materials and craftsmanship.

1. Cost and Maintenance: Vintage equipment like the Ampex Classic Tetrode VHF Transmitting Beam can be expensive to purchase and maintain. The vacuum tubes may need to be replaced periodically, and the equipment might require specialized repair services.

2. Energy Consumption: Vacuum tubes consume more power than solid-state components, which can result in higher energy bills.

3. Limited Compatibility: Due to its vintage nature, the Ampex Classic Tetrode VHF Transmitting Beam may not be compatible with modern systems or have limited connectivity options.

The Ampex Classic Tetrode VHF Transmitting Beam is an excellent choice for collectors, broadcasting enthusiasts, and those who value the unique sound quality that vacuum tubes offer. However, it is an investment that requires careful consideration due to its cost, energy consumption, and potential compatibility issues.

Before making a decision, it is essential to research the specific model of the Ampex Classic Tetrode VHF Transmitting Beam to understand its capabilities, requirements, and maintenance needs. Additionally, consider the intended use of the equipment to ensure it will meet your expectations and requirements. If you are not committed to maintaining and using the equipment regularly, it may be more cost-effective to opt for modern, solid-state alternatives.

Details:

Up for offer is this great condition classic 4 125a aka 4d21 vhf beam power tetrode, made by Amperex in holland. The tube is untested other than filament continuity was established.

Good luck buying.

part #: 4-125a prices

• $39.89-$63.75

specifications hamamateuradio:

• brand: Amperex
• part type: Beam
• country/region of manufacture: Netherlands

Seller hamamateuradio:

• city: Yonkers, New York
• zipcode: 10701

General hamamateuradio:

• condition: New other see details
• in stock: Yes
• Consumer Electronics > Radio Communication > Ham, Amateur Radio > Ham Radio Transmitters

Payments hamamateuradio:

• PayPal

Ratings:

1. I AM VERY SATISFIED 01-27-16
2. Perfect!! Excelent!! Thanks!! AAA ++++++++++++++++++++++++++++++++ 03-01-16
3. excellent 02-14-16
4. Quick response and fast payment. Perfect! THANKS!! 01-29-16
5. great seller, A++++++ thanks 01-27-16

Returns hamamateuradio:

• policy: no returns

Shipping hamamateuradio:

• handling: 3 days
• type: Calculated

Offer hamamateuradio:

• best offer: false
• # Sold: 0
• # bids: 0
• Started: March 8, 2016, 5:10 pm
• min. bid: $14.95
• quantity: 1

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