CBS WL7730 Westinghouse Pins Noise Microphonics 12AU7

( Brand: Cbs ), ( Model: WL7730 ), ( Type: Vacuum Tube ), ( Country/region Of Manufacture: United States )

Review CBS Pr Westinghouse Gold Pins Noise Microphonics

The Westinghouse WL7730 12AU7 vacuum tube is a vintage gem, harking back to the 1960s and embodying the reliable and warm sound quality that tube amplifiers are renowned for. This 12AU7 tube, manufactured by Westinghouse, is a direct-heated triode that operates on a DC filament voltage of 6.3V and a plate voltage of 240V.

The WL7730 tube features nine pins, which includes the filament, two control grids, and the anode. Its 12AU7 designation signifies its electrical characteristics, which include a high plate current, low plate resistance, and a wide frequency range. This makes it an excellent choice for applications such as audio pre-amplifiers, power amplifier input stages, and vacuum-tube oscillators.

One of the standout features of this tube is its reduced microphonic noise. Microphonics is a common issue in vintage tubes where minor vibrations can cause audible noise. The WL7730 Westinghouse tube has been engineered to have lower microphonic sensitivity, ensuring a cleaner sound when used in audio amplification systems.

The WL7730 is a CBS-branded tube, indicating that it was manufactured under the auspices of Columbia Broadcasting System, a media conglomerate known for its high-quality audio equipment. The CBS logo on the tube serves as a testament to its heritage and reliability.

In conclusion, the Westinghouse WL7730 12AU7 tube is a versatile and high-quality vintage component that combines the warm sound of tube technology with reduced microphonic noise. Its 1960s design and CBS branding make it a fascinating addition to any vintage audio enthusiast's collection or a reliable solution for audio equipment restoration projects.

1. Authenticity: This tube is a reproduction of the original 1964 CBS Westinghouse 12AU7, which is a popular choice among audiophiles for its warm and smooth sound.

2. High-quality materials: The WL7730 is made with high-quality materials, such as tungsten filament, to ensure longevity and performance.

3. Wide compatibility: This tube is compatible with a wide range of audio equipment, including preamps, power amplifiers, and vintage radios.

4. Value for money: Compared to some high-end tubes, the WL7730 offers good value for money, making it an affordable option for those looking to upgrade their audio system.

1. Sensitivity to microphonics: Vacuum tubes are generally sensitive to microphonics, which refers to the pickup of external sounds by the tube's glass enclosure. This can result in unwanted noise in the audio signal.

2. Requires maintenance: Vacuum tubes require regular maintenance, such as cleaning the filament and replacing the anode. This can be time-consuming and may require some technical knowledge.

3. Limited availability: While the WL7730 is widely available, some vintage audio equipment may require a specific version of the 12AU7 tube that is no longer in production.

4. Limited power output: Vacuum tubes generally have a lower power output compared to solid-state amplifiers, which may limit the performance of some high-end audio systems.

Conclusion: The Westinghouse WL7730 12AU7 vacuum tube is a high-quality reproduction of the original 1964 CBS Westinghouse 12AU7. It offers good value for money, a warm and smooth sound, and wide compatibility with various audio equipment. However, it is sensitive to microphonics, requires regular maintenance, and may not be suitable for high-end audio systems that require high power output. If you are looking for a vintage tube that can enhance the sound of your audio system, the WL7730 is a worthwhile consideration. But make sure to consider the cons and ensure that it is compatible with your equipment before making a purchase.

Details:

Wl7730 tubes are new old stock, in original cartons, never used.

The 7730 has thickly plated gold pins and was designed for critical applications uses in avionics other precision industrial electronics. All tubes are the same construction.

Original manufacturer is Cbs. Tubes have production code.

Buyers must use their own account. Use of a friends account or biding for friend is not allowed.

Designed for critical applications which require reliable performance with low noise and microphonics. 10 pairs available.

Pr westinghouse WL7730, 12AU7, gold pins, 1964, low noise microphonics listing price is for pair l7730. Do not purchase if you plan to pay. The 7730 specifications has a 10,000 hour heater rating.

part #: wl7730 prices

• $9.99-$121.80

specifications tubesocketvintagego:

• brand: Cbs
• model: Wl7730
• type: Vacuum Tube
• country/region of manufacture: United States

General tubesocketvintagego:

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

Shipping tubesocketvintagego:

• cost: $11.65
• handling: 1 days
• type: Calculated

Seller tubesocketvintagego:

• city: Waltham, Massachusetts
• zipcode: 02451

Returns tubesocketvintagego:

• paid by: Buyer
• type: Money Back
• details: Return shipping cost is the responsibility of the buyer. Item must be turned in original packing. Seller has the right to refuse refund if damage is incurred during return shipment. Refund will be made upon return of equipment and examination of returned equipment.
• policy: returns accepted
• time: 14 Days

Ratings:

1. Perfect pair in good status 05-26-17
2. Friendly, efficient and generous: just the best. Many thanks. Highly recommended 05-19-17
3. An excellent seller from every viewpoint. Thanks,Well recommended. 05-19-17
4. excellent seller, fast shipping, great communication, excellent packing!!! 05-30-17
5. Awesome. The best Client Ever 05-21-17

Payments tubesocketvintagego:

• PayPal

Offer tubesocketvintagego:

• bids: 0
• quantity: 9
• Started: June 2, 2017, 2:16 am
• best offer: false
• Sold: 0

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