
( Brand: Sylvania ), ( Model: 6LF6 ), ( Type: Power Tubes ), ( Country/region Of Manufacture: United States )
The Sylvania-RCA-Westinghouse 6LF6 Side-and-Top Getter Futterman OTL Sylvania is a truly unique and high-quality tube amplifier that harks back to the golden age of audio technology. This amplifier, a faithful reproduction of the iconic Futterman designs, is a testament to the enduring appeal of vacuum tube technology and its ability to deliver a warm, rich, and nuanced sound that digital amplifiers simply cannot replicate.
The 6LF6 Side-and-Top Getter Futterman OTL Sylvania features a single 6L6 output tube, which is housed in a sturdy and aesthetically pleasing aluminum chassis. The tube is easily accessible for replacement, thanks to the amp's side-and-top getter design, which allows for easy inspection and maintenance. The amplifier's output transformer is located at the top of the chassis, further enhancing its vintage aesthetic.
The amplifier's output transformer is coupled with a pair of high-quality output tubes, which deliver a total of 12 watts of power into 8 ohms. This may not be the most powerful amplifier on the market, but it more than makes up for it with its ability to deliver a rich, full-bodied sound that is truly captivating. The amplifier's single-ended Class A design ensures that every note is rendered with clarity, warmth, and depth, making it an ideal choice for music lovers who appreciate the subtleties of vintage audio.
The 6LF6 Side-and-Top Getter Futterman OTL Sylvania is equipped with a pair of high-quality input tubes, which allow for a wide range of tonal variations. The amp's tone control circuitry is simple but effective, allowing users to dial in the perfect balance between bass and treble. The amplifier's volume control is also a smooth and responsive unit, ensuring that users can easily adjust the volume to their desired level.
In terms of connectivity, the 6LF6 Side-and-Top Getter Futterman OTL Sylvania features a pair of RCA inputs, making it easy to connect to a wide range of audio sources, including turntables, CD players, and digital audio players. The amp's speaker terminals are also high-quality and secure, ensuring that the amp's power is delivered efficiently to your speakers.
Overall, the Sylvania-RCA-Westinghouse 6LF6 Side-and-Top Getter Futterman OTL Sylvania is a truly unique and exceptional tube amplifier that is sure to delight music lovers who appreciate the warm, rich sound of vintage audio. With its vintage aesthetic, high-quality components, and simple yet effective tone control circuitry, this amp is a true gem that is sure to become a cherished audio companion for years to come.
Pros of buying a Sylvania-RCA-Westinghouse 6LF6 Side and Top Getter Futterman OTL Sylvania tube amplifier:1. Tube amplification: Tube amplifiers, like the 6LF6, are known for their warm and rich sound quality, making them popular among audiophiles.
2. High-quality components: The Futterman OTL (Output Transformerless) design and premium components used in this amplifier can provide a more accurate and detailed sound than many solid-state amplifiers.
3. Vintage appeal: The vintage design and distinctive sound of tube amplifiers can add a unique character to your audio system.
4. Customizability: Tube amplifiers can be easily modified and upgraded, allowing for personalization and customization based on your preferences.
Cons of buying a Sylvania-RCA-Westinghouse 6LF6 Side and Top Getter Futterman OTL Sylvania tube amplifier:1. Maintenance requirements: Tube amplifiers require regular maintenance and monitoring to ensure proper operation and longevity. This includes replacing tubes as they age or fail.
2. Limited power output: Compared to solid-state amplifiers, tube amplifiers typically have less power output, which can limit their ability to drive more demanding speakers.
3. Cost: Tube amplifiers are generally more expensive than solid-state amplifiers, both in terms of the initial purchase price and ongoing maintenance costs.
4. Sensitivity to environment: Tube amplifiers can be sensitive to temperature, humidity, and other environmental factors, which can affect their performance and longevity.
Conclusion:The Sylvania-RCA-Westinghouse 6LF6 Side and Top Getter Futterman OTL Sylvania tube amplifier is a high-quality, customizable, and vintage-inspired option for audiophiles seeking a warm and detailed sound. However, it also comes with maintenance requirements, limited power output, and a higher cost. If you are willing to invest in the upkeep and appreciate the unique sound and character of tube amplifiers, this could be a great addition to your audio system. If you prefer a more low-maintenance and affordable option, a solid-state amplifier may be a better fit for you.
The second picture shows essential characteristics for this tube from ge. Once again, no test data for expected ma, and only a minimum reading gm. 5 ma and 7,000 gm min.
The good news is that both of these vintage testers agreed tubes were well matched to each other. Again these tubes pass the test just fine on this vintage tester. I have used weaker tubes in all of my futterman amps and never had a problem. Triplet 3444 test results:tube 1: 31.
Neither of these vintage testers is able to do anything near that. Recall that the at1000 test at 265v reasonably close to plate screen voltage of looks for 100ma tubes this type. Ma and 7,100 gm min. Hickok 539c test results:tube 1: 28 ma and 6250 gm min average the data provided with this vintage tester did not give an expected reading for tube type, but these readings would certainly lead one to believe are usable, good testing tubes.
Tube 2: 27 ma and 6250 gm min. The test programmed into was as follows. Plate voltage 160vscreen 160vgrid bias 30v expected results per the ge manual are 175ma dissipation and 11,500umhos conductance. This offer is for 14 Sylvania rca westinghouse and ram tube works 6LF6's, even though there are different brands on the tube they were all made by.
The bad news is that they both significantly overestimated condition of these tubes because testers themselves were not able to properly load power this type. These tubes do not test new they are down from 14 to 35 of what is expected a tube. The tests for excess gas and shorts as well. The results are on labels in pictures above.
Hickok triplet testers are not capable of testing this tube to spec, is a quote from reputable source found online about the readings Hickok and when compared for power tubes average 2: 30. They ranged from over 150ma plate dissipation to 113ma on the low side, this set will power a of futterman h3aas or pair Neal otl-3s without issues.