1. Vintage Tubes & Sockets Audio For Sale
  2. sku: 10571037456782983
  3. SIEMENS 7721-D3A

SIEMENS 7721-D3A Vacuum Tube Pins Triple Mica

7721-d3a Siemens 1- 7721 D3a Vacuum Tube Gold Plated Pins Triple Mica Tested Strong

( Brand: Siemens ), ( Manufacturer Part Number: 7721-D3A ), ( Model: 7721 D3A ), ( Type: Vacuum Tube ), ( Country Of Origin: Germany )

Review SIEMENS D3a Vacuum Tube Gold Plated Pins Triple Mica Tested Strong

Siemens 7721-D3A Triple Mica Vacuum Tube Pins - Reliable Performance in Vacuum Tube Applications

The Siemens 7721-D3A Triple Mica Vacuum Tube Pins stand out as exceptional components for high-voltage applications. These pins, manufactured by the renowned Siemens brand, are designed to deliver superior performance in demanding vacuum tube environments.

Crafted with precision, the 7721-D3A pins consist of a triple mica insulation layer, offering exceptional electrical insulation and withstanding high voltages effectively. This multi-layered structure ensures a long service life, even under continuous high-temperature and high-voltage conditions.

Each pin is made of a robust, heat-resistant metal core that provides the necessary structural strength and conduction properties. The metal core, coupled with the triple mica insulation, guarantees excellent heat dissipation, ensuring the pins maintain optimal operating temperatures.

The Siemens 7721-D3A Triple Mica Vacuum Tube Pins are ideal for use in a range of applications where high-voltage, high-temperature, and reliable performance are critical. These applications may include vacuum tubes used in amplifiers, oscilloscopes, and other electronic equipment.

With a rich history of quality and innovation, Siemens has earned a reputation for producing high-quality components. The 7721-D3A Triple Mica Vacuum Tube Pins are no exception. By choosing these pins, you can expect reliable, consistent performance in your vacuum tube applications.

Pros, Cons, and Recommendation for Siemens 7721-D3A Vacuum Tube Pins

Pros:

1. Authenticity: The Siemens 7721-D3A is a genuine product from a reputable manufacturer, Siemens, known for its quality and reliability in the electronics industry.

2. Triple Mica Construction: This design provides superior insulation and reduces the risk of electrical failures, making it suitable for high voltage applications.

3. Durability: The mica material used in these pins is resistant to high temperatures, making them long-lasting and reliable in various conditions.

4. Wide Applicability: These vacuum tube pins are used in a variety of electronic devices, including radio transmitters, receivers, and amplifiers.

Cons:

1. Price: Compared to other types of vacuum tube pins, the Siemens 7721-D3A can be quite expensive due to its high-quality construction and brand reputation.

2. Availability: Due to their vintage nature and high demand, these pins can be hard to find in local electronics stores, and you may need to order them online.

3. Compatibility: Ensure that the Siemens 7721-D3A is compatible with the specific electronic device you're planning to use it in, as compatibility can vary between models.

Conclusion:

The Siemens 7721-D3A Vacuum Tube Pins offer superior quality, durability, and wide applicability, making them an excellent choice for those working on vintage electronic devices or for collectors. However, their high price and potential compatibility issues should be considered before making a purchase.

Recommendation:

If you're looking for high-quality vacuum tube pins and are willing to invest in a genuine Siemens product, the Siemens 7721-D3A could be a great choice. Ensure to check compatibility with your device and shop around for the best price before making a purchase. If cost is a concern, consider looking into alternative brands or types of vacuum tube pins that may be more affordable.

Details:

Please e-mail me with any questions!, Black Plate, Triple Mica Halo O Fetter.

part #: 7721d3a prices

  • $166.41-$485.00

specifications tubesocketvintagego:

  • brand: Siemens
  • mpn: 7721-d3a
  • model: 7721 D3a
  • type: Vacuum Tube
  • country of origin: Germany

general tubesocketvintagego:

  • condition: Used
  • Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets

shipping tubesocketvintagego:

  • class: Standard, Expedited
  • cost: $5.95
  • transit: 3-7 Days
  • type: Fixed
  • service: USPS Ground Advantage, USPS Priority Mail
  • carrier: USPS

payments tubesocketvintagego:

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

seller tubesocketvintagego:

  • city: Morris, Illinois
  • # reviews: 9353
  • rating: 100.0%

returns tubesocketvintagego:

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

offer tubesocketvintagego:

  • started: November 25, 2025
  • quantity: 1
  • best offers: True
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
type: vacuum tube, country of origin: germany,
category: electronics > vintage audio video > vintage parts accessories > vintage tubes tube sockets, sku: 10571037456782983,
Siemens 7721-D3A Is Similar To:
tubesocketvintagego logo
5 offers $166.41–$485.00 USD
  • New. Offer #1 priced at $166.41 + $39.80 shipping estimate = $206.21* total. +$39.80 shipping
  • Used. Offer #2 priced at $219.00 + $13.00 shipping estimate = $232.00* total. + Tested: 17-18-18 93%-98%-98%. Tested in Funke 19 Tube Tester.+$13.00 shipping
  • Used. Offer #3 priced at $485.00 + $13.00 shipping estimate = $498.00* total. + Tested: 21-22 ( 100%).+$13.00 shipping
  • Brand New. Offer #4 priced at $110.47 + $39.91 shipping estimate = $150.38* total. This is part of a deceased estate sale and uncovered in a container full of electronic and other stuff. The sale is for one tube.+$39.91 shipping
  • Used. Offer #5 priced at $149.99 + $5.95 shipping estimate = $155.94* total. Black Plate, Triple Mica Halo "O" Getter.+$5.95 shipping

Copyright © tubesocketvintagego.com