Up for sale is a beautifully authentic piece of 1950s American audio history: an original, vintage 1952 Oahu Chicago 51 vacuum tube combo amplifier, proudly handwired in Chicago, Illinois by Valco. This compact, low-wattage studio powerhouse is legendary among recording guitarists and blues harmonica (“harp”) players for its warm, vibrant clean tones and its thick, gritty, natural mid-range overdrive when pushed. &####128203; Provenance & Dating. Serial Number: X49843 (Stamped on the original rear metal badge, firmly dating production to 1952). Front Badge: Features the classic blue and bronze Oahu Publishing Co. Badge in fantastic shape. Control Plate: Displays the distinct Valco Chicago 51 graphics. &####128266; Specifications & Tube Lineup. Speaker: Features the original silver-frame 10 Rola Alnico speaker (Stamped with factory specification code 550-3). Preamp Tubes: Vintage octal-envelope 6SQ7 and 6SC7 tubes. Controls: 1 Volume Knob, 1 Tone Knob, 3 Instrument Inputs, and an On/Off toggle switch. ? Current Functionality & Condition Report. The amplifier powers up, passes audio cleanly, and controls function. It sounds absolutely killer with a gritty vintage breakup at perfect studio volumes. Tolex & Cabinet: Shows authentic vintage mojo and wear. The original cream faux-crocodile tolex covering has significant peeling, tears, and missing material on the upper corners, exposing the underlying wooden cabinet. Component Wear: The amp retains its original brown, ungrounded 2-prong power cord and vintage Mallory multi-section filter capacitor block. Like all electronic equipment from this era, it is highly recommended to have a professional vintage amp technician inspect it, convert the power cord to a modern grounded 3-prong safety cable, and evaluate the 70+ year old chemical filter capacitors for prolonged, safe modern use.

Up for sale is a vintage H. Scott Type 232 monoblock tube power amplifier in working condition. The amplifier has been tested and produces audio output. The Type 232 is one of H. Scott’s classic high-fidelity monoblock amplifiers from the golden age of American tube audio. Known for its excellent build quality, substantial transformers, and outstanding sound performance, it remains highly desirable among collectors and vintage hi-fi enthusiasts. This amplifier retains its vintage character and appears largely original. It is an excellent candidate for use, restoration, or collection. Features. Vintage H. Scott Type 232 monoblock power amplifier. Classic American high-fidelity tube design. Heavy-duty power and output transformers. Vintage point-to-point wiring construction. Made in USA. Please review all photographs carefully, as they are an important part of the description and condition report. A desirable vintage H. Scott monoblock amplifier for collectors, audiophiles, restorers, and enthusiasts of classic tube equipment. We will reply you within 24 hours. (except weekends and holidays). All emails and orders will NOT be processed during weekends and holidays, orders will be dispatched only on Wednesdays to the continental United States. We will offer help to solve your problems as fast as possible. We are here to help! If get here it means that you read the entire description and saw all the photos, have a nice day and thank you for shopping with us.

SANSUI HS-5 Pair Output Transformer for Tube Amplifier Vintage Tested & Working. Condition: Pre-Owned Tested and working. Please note that no detailed audio performance tests have been conducted. There are small scratches and signs of wear from normal use. Please check the images for more details. We do not undervalue merchandise or mark items as gifts. Such actions are prohibited by Japanese, U. US and International Buyers – Please Note.

Vintage Kay Model 703 Tube Amplifier from the 1960s is stock. To hear it copy and paste the following link. Message me to hear an audio clip.

MONA WN TUBE-513 Vintage Tube Amp Japan Domestic Model – Rare, Working Well. Up for grabs is a genuine MONA WN TUBE-513 vacuum tube amplifier, sourced from Japan via Hardoff Netmall. This vintage domestic model delivers warm, retro audio perfect for home music setups or festivals-features 3 inputs, AC 110-240V power, and classic metal build for authentic tube tone. Pulled from working condition in Japan; tested and fully functional with no major issues noted. Ideal for audiophiles or collectors seeking rare JDM gear. If you have any questions, please feel free to contact me. Please check the condition of the product in the photo. All items are in the picture. Note only for products that are turned on. Products that do not turn on are not eligible? The power supply for this product is AC100V 50/60Hz. A transformer may be required in some countries. If it is different from A type, a converter is required. You in areas other than 100V. If you use the transformer I sell, you can use it in areas other than 100V. If you have any other questions, please contact me. It may not be possible in some areas. I will take a video of the operation confirmation. You can check the video on YouTube. This service gives buyers peace of mind. (10-15 days to US). (10-30days or more to Other countries). International Buyers – Please Note.

Other than the tubes and one of the power cord plugs, these pristine amps appear to be all original. All of the tubes recently tested strong and they are a combination of vintage RCA and vintage Sylvania brand tubes. All of the 5881 output tubes are vintage RCA matched tubes. As the photos show, these amps are extremely clean for their age, including all of the original potted transformers. You would have a hard time finding another pair of these late 1950′s tube amps in such clean and great sounding condition. These amps comes exactly as shown in the photos with all of the tubes shown. Own this pair of vintage Heathkit W4AM tube amps for a great price.

Vintage Hammond Organ Tube Reverberation Amplifier Chassis. 117 Volts AC, 60 Hz. Up for sale is a genuine vintage. Hammond H-AO-44-1 reverberation amplifier chassis. This unit was carefully removed from a fully functional, working organ. These compact, ruggedly built chassis feature high-quality vintage transformers and are highly sought after by audio enthusiasts as donor platforms for custom “lunchbox” DIY tube guitar amplifiers or standalone mono hi-fi blocks. Designed for a 3-tube configuration: Two ECL86/6GW8 triode-pentode output tubes and one EZ81/6CA4 rectifier tube. Includes the original power transformer, output transformer, input/driver terminal strip, and the multi-section aluminum filter capacitor can (Part 0-23154-0). Removed directly from a fully operational organ. The chassis is in uncleaned, as-found cosmetic condition with normal dust and patina from age.

Western Electric KS-15750-L1 Tube Tester manufactured by Hickok and designed for professional mutual conductance (Gm) tube testing. This highly sought-after tester was originally built for Western Electric/Bell System service applications and is widely respected among vintage audio collectors, tube enthusiasts, and electronics restorers. May require restoration, calibration, or replacement parts. Please review all photos carefully to determine completeness and cosmetic condition. Only the items shown are included. A rare opportunity to own one of the finest vintage tube testers ever produced. Western Electric, KS-15750-L1, Hickok, Hickok 1575, RD1575, tube tester, vacuum tube tester, mutual conductance, Gm tester, Bell System, Western Electric tester, vintage electronics, audio restoration, tube amplifier, audiophile, vacuum tubes, antique radio, electronics test equipment, collectible, parts repair, restoration project.

Hello and thanks for looking! Here I have for sale a still in great shape Olson tubed integrated amp. It definitely works great and passes audio… A pro tech went through it last year. These vintage tube units are known for delivering rich, warm tube goodness to frankly just about anything… Especially many cold sterile digital platforms we use today! Have become pretty difficult to find in great working order. THE PICTURE IS AS IMPORTANT AS THE DESCRIPTION! Thanks for your patronage!

Vintage Dukane 1U460A tube amplifier in great cosmetic condition and functional. Original RCA power tubes and rectifier along with original Sylvania 12AX7 tubes. It is in original condition with two leaky capacitors replaced during an internal inspection. It has three microphone inputs, two auxiliary inputs, and multiple speaker output taps including 4, 8 ohm. Makes for an excellent guitar amps as is with a conversion for 1/4 to rca which I have, or the mic jacks can be swapped to 1/4 for a much higher gain sound. I’ve chosen to leave it original for the Hifi guys as a monoblock. Extremely high quality build and components.