NATIONAL UNION NX-45 Nu Base Globe Radio Amplifier Tube 245 345
( Brand: National Union ), ( Model: NX-45 ), ( Modified Item: No ), ( Country/region Of Manufacture: United States ), ( Type: Vacuum Tube )
Review NATIONAL UNION Vintage Nu 245 345 Engraved Base Globe Radio Amplifier
The NX-45 National Union Nu 245 345 Base Globe Radio Amplifier Tube is a vintage electrical component that was a staple in the radio industry during its heyday. This tube, specifically the Nu 245 and Nu 345 variants, was designed for use in high-power amplifier applications in various radio systems.
The NX-45 is a triode vacuum tube, which means it uses a vacuum to control the flow of electrical current. It has a unique base globe design, with the base of the tube shaped like a globe, allowing for easy and secure installation in radio equipment. The tube measures approximately 6.5 inches in length and 2.5 inches in diameter, making it a substantial component in any vintage radio system.
The Nu 245 and Nu 345 variants of the NX-45 tube have different electrical specifications. The Nu 245 is a high-mu triode, with a plate current of 1.2 amps and a plate voltage of 300 volts. It has a high gain, making it suitable for use in the first stage of a radio amplifier. The Nu 345, on the other hand, is a medium-mu triode, with a plate current of 0.4 amps and a plate voltage of 300 volts. It is often used in the second or third stage of a radio amplifier, where it provides a power amplification boost.
The NX-45 National Union Nu 245 345 Base Globe Radio Amplifier Tube is a valuable addition to any vintage radio enthusiast's collection. Its unique design, historical significance, and excellent performance make it a sought-after component in the restoration and maintenance of vintage radio systems. Whether you're a collector, a restorer, or a radio hobbyist, this tube is a must-have for your collection.
Pros of buying a NX-45 National Union Nu 245 345 base globe radio amplifier tube:1. High Quality: National Union is a well-known and respected manufacturer of vacuum tubes, known for their high-quality products.
2. Versatility: This tube can be used in a variety of radio amplifier applications, making it a versatile choice for many hobbyists and audio enthusiasts.
3. Availability: NX-45 tubes are still widely available on the market, making it easy to find and purchase.
Cons of buying a NX-45 National Union Nu 245 345 base globe radio amplifier tube:1. Price: High-quality vacuum tubes like the NX-45 can be more expensive than cheaper alternatives, which may be a limiting factor for some buyers.
2. Power Consumption: Vacuum tubes, including the NX-45, consume more power than solid-state amplifiers, which may be a concern for those looking for energy-efficient solutions.
3. Maintenance: Vacuum tubes require regular maintenance and replacement, which can be time-consuming and expensive in the long run.
In conclusion, the NX-45 National Union Nu 245 345 base globe radio amplifier tube is a high-quality and versatile option for those looking to upgrade their audio system or restore a vintage radio. While the price and maintenance requirements are potential drawbacks, the superior sound quality and vintage aesthetic of vacuum tubes may be worth the investment for many audio enthusiasts. Ultimately, the decision to purchase the NX-45 tube should depend on one's budget, audio preferences, and willingness to invest in regular maintenance. I would recommend researching the specific applications for which the tube is intended and comparing it with other options to make an informed decision.
Details:
These came out of a large estate collection old stock from an audio collector's. Measures good on my calibrated Hickok TV-7 at 70 ea where 47 is minimum. Excellent cosmetic and working condition the tab to view all 11 pictures for details.
95 shipping. Glass is clear, lettering strong, base tight and flashing bright. Buyer to pay 7.
Made in USA, side cup fetter. I do not offer buy-it-nows and end my offers early. Here is a beautiful vintage National Union nx engraved base globe amplifier tube.
An excellent addition to anyone's collection.
part #: nx45 prices
- $10.00-$204.13
specifications tubesocketvintagego:
- brand: National Union
- model: Nx-45
- modified item: No
- country/region of manufacture: United States
- type: Vacuum Tube
Shipping tubesocketvintagego:
- handling: 3 days
- type: Flat
- cost: $7.95
General tubesocketvintagego:
- Vintage Parts Accessories > Vintage Tubes Tube Sockets
- in stock: Yes
Seller tubesocketvintagego:
- city: Seattle, Washington
- rating 02-18-19: 100.0%
- # feedbacks 02-18-19: 9669
- zipcode: 98116
Returns tubesocketvintagego:
- type: Money Back
- paid by: Seller
- policy: returns accepted
- time: 60 Days
Offer tubesocketvintagego:
- quantity: 1
- Started: February 19, 2019, 1:10 am
- Sold: 0
- bids: 0
- best offer: false
- min. bid: $9.99
Payments tubesocketvintagego:
- PayPal
Ratings:
- Thank you very much! 02-14-19
- AAA Thanks! Perfect Seller!!! Amazing tubes! Highly recommended seller!!! 02-16-19
- As represented, well packed, thanks. 02-15-19
- great seller 02-14-19
- Super fast shipping, beautiful plate, well packed! Thanks!! 02-16-19
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