LUXMAN SQ38FD Tube Integrated Amplifier Vintage Hi-Fi Tested Working Japan. Looking for Other Amplifiers. We offer a wide selection of integrated amplifiers preamps and Hi-Fi audio equipment. LUXMAN SQ38FD vacuum tube integrated amplifier. Operation has been confirmed, and the unit is functioning properly. All rotary switches, volume controls, and balance controls operate smoothly with no significant static noise or switching shock during normal use. Contact points have been cleaned and treated for improved reliability. Tone controls and filter circuits were tested, and both audible performance and measured values were confirmed to be within proper specifications. The headphone circuit is also functioning normally. All RCA terminals and speaker output terminals are present with no looseness or instability. Please note that the PHONO circuit was not fully tested with an actual turntable setup, therefore subjective S/N performance and noise levels have not been confirmed. Basic measurements including S/N ratio, frequency response, input/output characteristics, distortion level, and maximum output were carried out, and no abnormalities were found. Stable operation was confirmed even under capacitive load conditions with no oscillation issues. The PHONO input was also checked using reverse RIAA measurement, and EQ deviation was found to be within acceptable range. This amplifier operates very stably and reflects the high-quality engineering and craftsmanship that LUXMAN is known for. The vacuum tubes consist of 50CA10 ×4, 6AQ8 ×2, 6267 ×2, and 12AX7 ×4. Tubes are a mixture of Matsushita-branded and LUXMAN-branded units. All tubes are low-noise types and were checked using a TV-7 tube tester, confirming practical usability and healthy operating condition. Most coupling capacitors are film capacitors. Random inspections of several components showed some aging in capacitance, insulation characteristics, and loss values, but nothing considered problematic for practical use. Some electrolytic capacitors, especially those exposed to high voltage, may benefit from preventive replacement during future maintenance. The amplifier is offered in its current condition. Please check the photos for details. Only the item shown in the photos is included. This classic LUXMAN tube amplifier delivers the warmth and musical richness that vintage audio enthusiasts appreciate. A beautifully engineered piece that can bring an authentic analog listening experience to any collection. This is a used item and may show signs of age. Please feel free to contact me anytime. Thank you for visiting my listing!

Untested – no power-on or signal testing performed. Vintage Stromberg-Carlson AR-37 tube amplifier paired with a Fisher preamp/equalizer. Both units are from the late-1940s to early-1950s era and were part of an early hi-fi/record-reproduction setup. The AR-37 is known for its 10-watt output, five-tube design, and built-in equalization network intended for pre-RIAA record curves. The Fisher preamp adds tone shaping and gain control typical of early Fisher engineering. Both units are untested. No power-on or functional checks were performed. They are offered AS-IS for parts, restoration, or display. Five-tube amplifier (6SN7GT, 6SN7GT, 6F6, 6F6, 5Y3GT). Rated around 10 watts output. Bass boost, treble attenuation, and compensation controls. Metal chassis design typical of late-40s Stromberg-Carlson engineering. Cosmetics show age-appropriate wear. No guarantee of completeness or functionality. No cables or accessories included. AI has added the following description after all the photos were loaded. ? Identification of Your Components. A Stromberg-Carlson chassis with a 50-60 cycle, 105-125V plate. A large power transformer and multiple octal tubes. A front panel with Fidelity / Treble / Bass / Volume controls. Serial numbers consistent with late 1940s-early 1950s SC sound equipment. This is not an AR-37. It appears to be a higher-power Stromberg-Carlson PA/Hi-Fi amp, likely in the 20-30 watt class, closer to models like the AMP-1, AMP-2, or AMP-24 family. These sell higher than AR-37 units because they have more output and better transformers. Early Fisher bird logo. Markings for AES, NARTB, LP, 800, etc. This is an early Fisher phono preamp/EQ, late 1940s-early 1950s. These are collectible because they predate the Fisher hi-fi receivers of the 1950s-60s. The wooden case with a handle and combined front panel is a period custom build. These were often used in. Collectors like these because they show real-world use and originality.

Unit powers on condition is unknown – I do not have the equipment or knowledge to fully test it safely. Cosmetically it shows normal wear from age and use including scratches, marks, dust, and handwritten markings around knobs. Interior appears largely complete from what I can see in the chassis. Please review all photos carefully for condition and completeness. Features dual meters, large tuning knobs, and original Heathkit styling. Great candidate for restoration, ham radio project, or parts donor.

Great sounding amplifier that is set up for electric guitar. I customized a Vox amp cabinet to house the amplifier very nicely.

Two years ago, we become a non-profit with our main focus on lessons. We are liquating many items including our tube stock. These are the best of the best that we have remaining. All tested and ready to install. We didn’t take pictures of all of them. Because if you are reading this, you know what a tube looks like. We no longer have our “Tube Guru”, so we went by what he wrote on the boxes. (1) 5U4G SOVTEK No info looks good.

Classic Danelectro-built single-ended 6V6 tube amp. 5 watts, 8-inch speaker, volume, tone, two inputs. Clean and original – tubes glow, no major rust or damage, power cord included. Sounds great with that warm, gritty tube tone. Perfect for blues, rock, or as a killer low-volume practice amp.

The vintage David Bogen Sound System Model Pv-10 is a rare find for collectors of audio equipment. This sound system has been power tested and is ready for use, making it a valuable addition to any vintage audio collection. With its unique design and historical significance, this model is sure to be a standout piece for enthusiasts of radios and phonographs.

Vintage Bell & Howell Filmosound 385 Tube Amplifier Amp & Speaker – Tested WORKS. Tested and working (a mp was tested on a stepdown converter due to the age). A soft static sound is heard from speaker while amp is on. When playing sound through the amp, the audio will be louder background static at normal volume levels when the knob is above the halfway mark. Static sound does not increase with volume level. All Bell and Howell branded tubes installed. Amplifier is unrestored, service is recommended before further use. Original projector speaker included, working. Standard signs of use. May have cosmetic wear and/or scuffs. Paint chipped on power transformer. Surface rust on some areas of the chassis and speaker. See photos for more detail. Includes only what is pictured. Includes a compatible power cord. Does not include any additional components. R2v3 CATEGORY C4/F4 NON-DATA.

The Dynakit Mark IV Tube Amplifier is a vintage model known for its high-quality sound and classic design. As a well-crafted piece of vintage electronics, this amplifier falls under the category of consumer electronics and vintage audio & video. With its Dynakit brand reputation and tube amplifier type, this model is sure to appeal to audiophiles and collectors looking for a piece of audio history to add to their collection.

Please note there are minor scratches and marks due to age. Please note that it is a used item. Kindly refer to the product description for more details. If you have any questions, please feel free to ask.