ARCTURUS BLUE OTHER 231-D Nos Western Electric Tubes 717AM 221-D 311B 5603 394A

( Brand: Arcturus Blue Other ), ( Manufacturer Part Number: 231-D ), ( Model: 717AM 231-D 231D 311B 416 394A 5603/398A ), ( Part Type: Tube ), ( Country Of Origin: United States )

Review ARCTURUS BLUE OTHER Nos Nib To Strong Western Electric Tubes 717a 231d 394a

Introducing the Arcturus 231-D NOS (New Old Stock) Western Electric tubes, a premium collection of vacuum tubes that delivers exceptional performance for audio enthusiasts and professionals. This set includes six different types of tubes: 717A, 231D, 221-D, 311B, 5603, and 394A. Each tube is meticulously sourced from original stock to ensure authenticity and reliability.

The 717A is a high mu triode designed for use as an amplifier input or driver tube. It boasts a high plate current gain of around 120, making it an excellent choice for high-current applications. Its heater voltage is 6.3V, and it operates at a plate voltage of 180V.

Next up is the 231D, a high mu pentode used as a power output tube. This tube can deliver impressive power handling capabilities, making it suitable for use in power amplifiers. Its heater voltage is 6.3V, while its plate voltage ranges from 300V to 350V.

The 221-D is another high mu pentode, primarily used as a power output tube in audio applications. It features a higher plate voltage range of 400V to 500V, making it more efficient in power amplifiers. Its heater voltage remains constant at 6.3V.

The 311B is a dual triode tube, often used as a voltage amplifier or as a preamplifier stage in audio equipment. It operates at a heater voltage of 6.3V and a plate voltage of 180V.

The 5603 is a pentode used as a power output or driver tube. Its heater voltage is 6.3V, and it operates at a plate voltage of 180V to 200V.

Lastly, the 394A is a triode used as a voltage amplifier or as an input tube. It operates at a heater voltage of 6.3V and a plate voltage of 180V. Each tube in this collection is carefully inspected, tested, and matched for optimal performance.

These Arcturus 231-D NOS Western Electric tubes are not only desirable for their exceptional sound quality but also for their nostalgic appeal. They provide a connection to the past, a reminder of the rich history of vacuum tube technology and its significant role in shaping the audio landscape.

Embrace the authenticity and reliability of these vintage tubes and elevate your audio experience with the Arcturus 231-D NOS Western Electric tubes.

Arcturus 231-D NOS (New Old Stock) Western Electric tubes, which include 717A 231D, 221-D 311B, 5603, and 394A, are highly sought-after among audio enthusiasts and vintage electronics collectors. These tubes offer a unique combination of historical significance, sonic character, and potential performance improvements compared to modern alternatives. Let's discuss some pros and cons of investing in these Arcturus tubes.

1. Authentic sound: Tubes like these have a rich, warm, and dynamic sound that is often preferred over the more sterile and clinical sound of solid-state components.

2. Historical significance: These tubes are a piece of history, having been manufactured during the golden age of vacuum tube technology.

3. Collectible value: As NOS tubes, they hold significant collectible value, which can make them an excellent investment for those who are interested in both audio performance and collecting.

4. Sonic flexibility: Different tubes within this set offer various sonic characteristics, providing flexibility for users to tailor their sound to their preferences.

5. Vintage aesthetics: The old-school design and appearance of these tubes can add an attractive and unique visual element to any audio setup.

1. Limited availability: Due to their NOS status, these tubes can be difficult to find and purchase.

2. Higher cost: Compared to modern alternatives, NOS tubes like these can be more expensive.

3. Maintenance and compatibility: Vintage tubes like these may require more frequent maintenance and may not be compatible with all modern equipment.

4. Fragility: Tubes are delicate components and can be prone to damage during handling and transportation.

5. Power consumption: Tubes generally consume more power than their solid-state counterparts, which can result in increased electricity bills.

Arcturus 231-D NOS Western Electric tubes offer a unique combination of historical significance, sonic character, and potential performance improvements. However, they also come with some challenges, such as limited availability, higher cost, and increased maintenance requirements. Ultimately, the decision to invest in these tubes depends on your personal preferences, budget, and audio setup. If you're an audio enthusiast who values the unique sound and aesthetics of vintage tubes, these Arcturus tubes may be worth the investment. On the other hand, if you're looking for a more practical and cost-effective solution, modern alternatives may be a better choice.

Details:

I no longer ship to China Vietnam due lost packages in Custom's.

part #: 231 prices

• $16.78-$250.00

specifications vintaelec:

• brand: Arcturus Blue Other
• mpn: 231-d
• model: 717am 231-d 231d 311b 416 394a 5603/398a
• part type: Tube
• country of origin: United States

seller vintaelec:

• rating: 100.0%
• city: Salem, Oregon
• # reviews: 10206

offer vintaelec:

• quantity: 1
• started: January 10, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0

general vintaelec:

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

payments vintaelec:

• wallet: Google-pay
• Other
• credit card: Mastercard

returns vintaelec:

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

shipping vintaelec:

• transit: 4-7 Days
• cost: $16.90
• class: Expedited
• type: Calculated
• carrier: USPS
• service: USPS Priority Mail

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