12SQ7GT Tubes Nos 6QS7 6SK7

( Part Type: Tube )

Review Tubes Nos 12sq7

The 12SQ7GT and 6SK7 tubes, along with their counterpart 6QS7, are a trio of vacuum tubes that have been widely used in various audio applications due to their exceptional performance and versatility. These tubes belong to the pentode family, which means they have five active electrical elements, including a control grid, grid-1, grid-2, plate, and cathode.

The 12SQ7GT is a high-mu (mu current gain) vacuum tube, which is particularly suitable for use in power amplifiers, preamplifiers, and audio mixers. It has a high plate current handling capability, allowing it to drive low-impedance loads efficiently. The 12SQ7GT tube is also known for its low noise floor and high gain, which contribute to the overall sound clarity and detail.

The 6SK7 tube, on the other hand, is a medium-mu vacuum tube that is commonly used in preamplifier stages and output stages of audio amplifiers. It has a lower plate current handling capacity compared to the 12SQ7GT, but it still delivers a good balance of gain, linearity, and distortion characteristics. The 6SK7 tube is also well-known for its low noise floor and good frequency response.

The 6QS7 tube is similar to the 6SK7 in many ways, but it has a slightly different electrical design that makes it more suitable for use in certain applications. The 6QS7 tube is often used as a driver stage in single-ended triode (SET) amplifiers, where its high gain and low distortion characteristics can help to achieve a rich, full-bodied sound.

All three tubes share the same 9-pin base and are compatible with each other in many circuits, making them an excellent choice for DIY audio enthusiasts who are looking to build their own high-quality audio amplifiers or preamplifiers. The 12SQ7GT, 6SK7, and 6QS7 tubes are also available in various new, vintage, and NOS (new old stock) versions, allowing you to choose the one that best fits your specific application and sound preference.

1. Authentic sound: Tube amplifiers using these specific tubes can produce a rich, warm, and authentic sound that digital amplifiers may not be able to replicate.

2. Vintage and nostalgic: These tubes are often associated with vintage audio equipment and can add a nostalgic charm to any audio setup.

3. Flexibility: Tube amplifiers can be easily customized to suit different audio preferences, such as changing the sound quality or power output.

1. Maintenance and replacement: Tube amplifiers require regular maintenance and may require tube replacement, which can be expensive and time-consuming.

2. Limited power output: Tube amplifiers may not be able to produce as much power as solid-state amplifiers, which can limit their use with high-power speakers.

3. Sensitivity to temperature and humidity: Tube amplifiers are sensitive to changes in temperature and humidity, which can affect their performance and lifespan.

While 12sq7GT 6SK7 tubes with 6QS7 offer a rich, authentic sound and a nostalgic charm, they also require regular maintenance and replacement, have limited power output, and are sensitive to temperature and humidity. If you are looking for a vintage sound and are willing to put in the time and effort to maintain the equipment, then these tubes may be a good choice for you. However, if you are looking for a more modern, reliable, and less maintenance-intensive option, then you may want to consider a solid-state amplifier.

If you are interested in buying 12sq7GT 6SK7 tubes with 6QS7, I would recommend doing your research and finding a reputable seller to ensure you are getting authentic tubes. It would also be a good idea to invest in a high-quality tube amplifier to get the best sound quality possible. Additionally, make sure to properly maintain the equipment to ensure it lasts as long as possible.

Details:

Boxes have a little wear, tubes are clean, no damage. One 12sq7, one 6SK7, two 6sq7, and two 12SQ7GT. These are six vintage new old stock vacuum tubes.

part #: 12sq7gt prices

• $7.45-$27.75

Returns:

• policy: no returns

Seller:

• zipcode: 44805
• city: Ashland, Ohio

Offer:

• quantity: 1
• # Sold: 0
• best offer: false
• min. bid: $20.00
• # bids: 0
• Started: February 12, 2015, 9:14 pm

Payments:

• PayPal

General:

• Collectibles > Radio, Phonograph, TV, Phone > Radios > Parts & Tubes
• in stock: Yes
• condition: New

Ratings:

1. Item was as described. Already used some parts for restorations. 02-04-15
2. great tube as described and well packaged for shp 02-05-15
3. great tube as described 02-05-15
4. Excelente Vendedor. Muy Profesional. Envioper R pido. Un placer. Gracias 02-07-15
5. Excellent in every way 02-06-15

Shipping:

• type: Flat
• handling: 3 days
• cost: $7.0

6SK7 Is Similar To:

• Tubes Boxed 0a2wa 5 Nos Pcs 0a2 (35.8% similar) Nos tubes boxed 10 day no DOA warranty. Non paying buyers are notified through's non paying bidder alert. Shipping outside the USA is by the first class, priority or express depending upon value, weight and volume. Please wait to receive a final bill. I have been in the electron tubes business for ...(February 28th, 2015)
• 100317114 Western Electric Lot Of Vacuum Tubes In Original Boxes Nos (31.1% similar) I do not have a tester and am assuming based on the condition of his collection that these are nos. The boxes are in great condition as shown pictures. No rattles and the pins have visible marks. Their original boxes with mounting screws. The glass is solid in base. This is a lot of 2 western ...(September 30th, 2018)
• 10al11 Mullard Nos Vacuum Tubes Include Tungsol Sylvania Raytheon Ge And (26.2% similar) ...(August 23rd, 2018)
• Three Volt 10 Boxes Tested Rca 10bq5 Tubes 6bq5 Vacum Nos Lot Valves (35% similar) They were all tested on a recently calibrated b k 747B mutual conductance tester. I have for sale three nos rca 10BQ5 vacuum tubes. All three tubes tested at 120 out of 120 and showed no shorts or grid emission. These are new tubes in their original boxes...(February 6th, 2015)
• 10cw5-el86 Philips Matched Code Pair Nos Nib Vacuum Tubes Precision Tested (23.9% similar) Its your option. Each is tested for emission, dynamic mutual conductance, shorts, and gas as applicable...(July 25th, 2018)
• 10ld6 Amperex Nos Vacuum Tubes Tests Good (31.6% similar) ...(October 9th, 2018)
• 11480 Amphenol Magic Eye Assemblies For Electron Ray Tubes Nos Meac (29.4% similar) I am taking the information from paperwork in one of boxes since have no clue, really. These were an estate sale find. One box has a few more pieces than the other, what you see is how they came, so if are missing something, I'm sorry, but I don't have it. Boxes have some wear on them, insides look ...(April 24th, 2018)
• Stereo Nos M7gt Nib Tubes Tung-sol Tested Pair Dark 117l7 Matched Glass (34% similar) Matched pair of Ting sol 117L7 M7GT stereo tubes dark glass with betterment's new old stock in boxes tested super strong on my heath kit Tc 3 tube tester satisfaction guaranteed...(February 7th, 2015)
• Sol Tung Tubes Nos 117p7gt Rectifier Nu Ctl Amp Rca Military Jan Power (28% similar) I have sold many tubes and guarantee all that I sell. This tube was found in his nos pile however it was not the original box. I am happy to combine shipping. Just let me know your wishes...(March 8th, 2015)
• Nib 11ca11 Dumont 56 Zenith Ge Nos Lot Type Tubes Vacuum Sylvania Rca (28.8% similar) We combine shipping. On Oct at PDT, every buyer gets a invitation for cash back. Please for a quote before buying or buying...(February 27th, 2015)
• 11ds5 Westinghouse Vintage Nos Vacuum Tube Tubes Usa Tested (31.9% similar) This vintage Westinghouse 11DS5 vacuum tube appears to be new old stock and tested good for shorts, emission strong grid leakage tests on encore mighty mite vi, TC154 tester...(October 21st, 2018)