The 1950′s Knight 83 SX 234 Vintage Vacuum Tube Power Amplifier Kit is a mono amplifier designed by Knight. This vintage electronic offers a classic design and high-quality sound for audio enthusiasts looking to add a retro touch to their audio setup. With vacuum tube technology, this amplifier provides a warm and rich sound that is perfect for vintage audio collectors or those who appreciate the unique sound of tube amplifiers. The Knight 83 SX 234 vintage amplifier kit is a timeless piece of audio equipment that is sure to enhance any music listening experience. Looks to be never used or unfinished.
Vintage mid-1950s Heath Company hand-built Heathkit W3M “Williamson Type” mono tube amplifier and companion Heathkit WA-1 Power Supply in good working condition (see video). Appears to all original and unmolested. No hum and very good cosmetic condition for its age. Amazing that these were engineered so well that its working great after 70 years. All vintage tubes made in USA. Acrosound TO-300 “ultra-linear” output transformer. Being so old, it should be checked out by a qualified tech to replace any out of spec or obsolete components. The only issue I noticed was the multi-pin connected cable needs to be manipulated to find a sweet spot to make a connection, so there must a loose or frayed wire in cable end. Nice mono amp for your vinyl audio system or part of a tube stereo set-up. Heathkit W-3M Tube Amplifier & WA-1 Power Supply – YouTube. These are automatically added to the final invoice and I’m not able to delete or adjust them.
I do a lot of business with them and they always have well cared for gear. Not saying it won’t need adjustments but, it looks like a nice clean unit. Everything you see in the pictures is what is included in this lot. Photos are the best description. Please look at all pictures closely before purchasing. We will document any damage the best we can but the photos will always be the best way to exam the item. Items may need a more in depth cleaning. We will do our best to clean every item, although sometimes we can’t do a full thorough clean. Message us for additional photos or questions. We of course will get them out as fast as we can. We will help resolve whatever issue you are having. We try very hard to provide good communication and always strive for everyone to have a positive experiences!
Dynaco Stereo 70 ST-70 Tube Amplifier – Classic Vintage High-Fidelity Power Amp. Stereo 70 (ST-70) is a legendary tube amplifier known for its high-fidelity sound, robust performance, and compact design. Featuring Dynaco Super-Fidelity A-470 output transformers and a patented circuit design, the ST-70 delivers exceptional tonal balance and dynamic response, whether used in stereo or bridged for monophonic 70-watt operation. Each channel operates independently, providing ample power for any efficiency of speaker system, while the low internal impedance ensures tight damping and precise control over your loudspeakers. Key Features & Highlights. Dual 35-watt channels (stereo) or paralleled 70-watt output (mono). High-quality A-470 output transformers for full-range, low-distortion performance. Designed to maintain exceptional fidelity under real-world loudspeaker loads. Dynamic transient response : reproduces percussive and piano notes with clarity, sharpness, and no muddiness. Compact yet robust construction, ideal for home stereo or studio use. This unit is previously used, shows light cosmetic wear consistent with age, and is fully functional, delivering the authentic sound and performance that made the ST-70 a classic. Whether you’re a vintage audio collector, a tube enthusiast, or a musician seeking warm, musical amplification, the Dynaco ST-70 remains a highly sought-after reference tube amplifier with unmatched character and tone. We’re not just sellers, we’re passionate musicians, gear aficionados, and seasoned professionals dedicated to the craft of making music. We take pride in our curated music collection. We love giving these vintage and rare pieces new life through maintenance and upkeep. Our goal is for these units to be at their optimal performance before going to their new homes. Every item you acquire from us undergoes a meticulous inspection process conducted by our team of enthusiasts, studio engineers, and live performers. With full-time technicians on staff, rest assured that each piece is thoroughly examined and tested before being professionally packed. Once your order is in transit, automatic tracking information is provided, allowing you to monitor its journey from our shop to your doorstep with ease. The units/items you see in our pictures are precisely what you’ll receive. Additionally, we offer custom modifications, within reason, to many of the guitars and products we sell, ensuring they perfectly suit your unique requirements. If, for any reason, you’re not completely satisfied, please reach out to us before leaving feedback. Your happiness is our priority, and we’re here to ensure your musical journey is nothing short of exceptional. We’re here to address any concerns and ensure you have a positive experience with Tone House.
For sale is one (1) vintage Ken-Rad 2A3 tube as pictured. The tube’s base is tight and secure with zero movement / looseness. The test results are displayed in the photos New 2A3 Spec 100% = 5,2. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.
PAIR of VTG Sound Valves M40 Mono Tube Power Amplifiers – Dynaco MK IV. The amplifiers are in near mint condition! There are some very minor imperfections. Both amps power up as they should and they work great. The tubes come with the amps. Note this is a matched set w/ consecutive serial numbers! Please be sure to check out my other listings as I will have many other vintage audio and radio-related items up for sale.
Offered for your consideration is a vintage DYNACO STEREO 120A two-channel power amplifier, USA-manufactured c. As you may know, the Dyna Company, later DYNACO, was founded in 1955 by David Hafler and made its name producing quality, affordable vacuum tube amplifiers in factory-assembled and partial kit form. The STEREO 120, or ST 120-the first solid-state amplifier from DYNACO -was introduced in 1965, several years after the technology had become widespread in the audio marketplace. The ST 120 was released after a few years of developments and testing, and only when Hafler felt that it performed as well, and was as dependable, as their venerable tube amplifiers. A 1966 review in Stereophile saw noted audio writer Gordon Holt praise the ST 120, comparing its sound favorably with earlier Dyna tube amplifiers, and also a pair of the renowned Marantz 8B mono tube amps, which put sales of their newest unit on the fast track. Like their tube amps and preamps, the ST 120 was available in partial kit form, and also a factory-wired 120A like the unit shown here. It features a handsome, modestly-sized chassis of chrome-plated steel with fully-perforated, black-enameled steel cover. As on their earlier amps, the 120 model name had meaning; 120 total watts, or 60 watts per channel, which was a significant output level when it was introduced in the mid 1960′s. So, please see my large photos, the specification scan, and read the remaining description to decide if this exceptional DYNACO power amp should be yours. This ST 120A amplifier is in very clean, excellent condition. Adult-owned since new and used sparingly, there are no dents, dings, or scratches on the enclosure. Plus, the chrome shines brilliantly without the tarnish, oxidation, pitting, and even rust seen on many other 120A’s. Also, the lettering is crisp and the power toggle switch works smoothly, glowing a pleasant orange when on. Overall, this DYNACO amp is exceptionally well preserved and presents very nicely. In addition, the original power cord was stiff and cracked, so it was replaced with a new, two-prong grounded plug cord. The interior received a careful dusting and wipe down, and a 1972 date code was noted on one of the huge capacitors giving the likely manufacture date range for the amp. And, since the cover was off, I took the opportunity to take photos of the amp’s interior for your review. Most importantly, the amplifier has been fully tested, receiving signals from my trusted, silver-faced DENON PRA-1000 preamp. Plus, the convenient, side-mounted +/- output terminals are sturdy binding posts, able to accommodate banana plugs, pin terminations, and, of course, raw speaker wire. Lastly, the ST 120A’s durability is legendary with Gordon Holt famously trying to break one during his review testing, and couldn’t! Needless to say, it’s not daunted by driving the most challenging 4? Speakers to their limit. In closing, you’d be hard-pressed to encounter a finer example of the ST 120A. As pictured and described, this splendid DYNACO STEREO 120A power amplifier is offered at a competitive price. What’s more, I don’t know how the unit will be put to use by the new owner, their degree of experience with audio equipment, or the quality/condition of the equipment it will be connected to. This is a well-built amplifier, so I don’t foresee any problems, but nevertheless needed to state the above. And, I’d like you to be the next one! A sturdy box, perhaps two, lined with dense foam panels (and/or other protective materials as I deem fit), will be used to ensure no disappointments upon arrival. Local pick-up is fine, actually preferred, for those in the Chicago-Milwaukee metro area (or farther if you’re willing to make the drive). We’re located about 35 miles north of downtown and some 20 miles south of the WI State line at Kenosha. For international buyers that use a U.
