National / Panasonic SG-110F Portable radio–turntable–cassette system – early 1970s (circa 1972) The SG-110F is an early 1970s Japanese portable all-in-one audio system combining AM/FM radio, turntable, and cassette recorder in a single compact unit. Manufactured by Matsushita Electric Industrial Co., it represents a transitional stage between domestic tabletop audio equipment and the later generation of high-power portable stereos. Designed several years before the classic late-1970s and 1980s boomboxes, the SG-110F is widely regarded as a precursor to the boombox concept, anticipating battery-powered, portable multi-source audio systems with integrated speakers. Considering its original release around 1972, it is increasingly difficult to find examples that are clean, complete, and still largely functional, as many surviving units show heavy wear, corrosion, missing parts, or extensive modifications. Condition Body in good overall condition No cracks or structural damage Visible cosmetic details: missing trim on the play button cover small missing trim section on the outer edge These issues are purely cosmetic and do not affect functionality. Build quality & originality The overall construction quality is very high, with careful mechanical and electrical design typical of early-1970s Japanese manufacturing. The internal layout is remarkably detailed and well engineered, including a dedicated internal holder for neatly storing the mains power cord when rewound, integrated inside the battery compartment. The battery compartment is clean and free from oxidation or corrosion. All components are original factory parts, including speakers, wiring, electronic components, and mechanical assemblies. No cosmetic or internal modifications have been made. The unit remains fully original and unaltered. Functional condition (tested) FM radio fully working with stable reception Turntable fully functional at 33⅓ and 45 RPM, supports 12-inch, 10-inch, and 7-inch records Cassette deck: play function working correctly recording function working Fast Forward and Rewind engage but lack sufficient torque; behaviour consistent with aged rubber components (pinch roller and/or idler wheel), requiring service Microphone input tested: recording via external digital source connected through a DAC was successfully recorded onto cassette and correctly played back External speaker output tested: fully functional when internal speakers are switched OFF Audio & controls: speaker ON/OFF selector working volume and tone controls working correctly clear sound output for its type and age Analog meter: a built-in analog multi-function meter (Tuning / Battery / Level) is present and fully operational, allowing precise radio tuning and visual monitoring of signal level and battery status. Testing The unit has been tested using AC mains power and battery power, with correct operation confirmed under both conditions. Video demonstration available at the following link: https://youtu.be/kzM4H9Rt1A4 The video shows the actual item offered, demonstrating its condition and main functions at the time of listing. Technical specifications General principle: superheterodyne receiver Wave bands: AM (MW) and FM (VHF) Radio frequencies: FM: 87.5 – 100 MHz AM: 520 – 1605 kHz Functions: radio / turntable / cassette recorder combination Turntable: speeds: 33⅓ RPM and 45 RPM supports 12-inch, 10-inch, and 7-inch records Cassette system: compact cassette, playback and recording Speakers: original dual speaker configuration manufacturer: Matsushita / National speaker model: EAS-10P80SD type: magnetodynamic loudspeakers (permanent magnet, moving coil) diameter: 8 cm / 3.1 inch impedance: 4 Ω (each) rated power: 1.6 W per speaker Total output power: approx. 4 W (manufacturer rating) Power supply: AC mains with original voltage selector (110 / 130 / 200 / 220 / 250 V) battery operation: 6 × 1.5 V D-size batteries (not supplied) Connections: microphone input and external speaker outputs Materials: plastic cabinet (not Bakelite or Catalin) Form factor: portable audio unit designed for use without mains power Dimensions (W × H × D): 170 × 320 × 230 mm Net weight: approx. 3 kg Original retail price: 499 Deutsche Mark (first year of sale) Reference: documented on Radiomuseum.org Collector’s note: Introduced around 1972, the SG-110F anticipates the concept of portable multi-source audio systems later known as boomboxes; finding an original, intact, and still functional example today is increasingly uncommon. Please note: the last six images included in this listing are provided for reference purposes only. They show the same model in original catalog or reference material. The original catalog images are not included in the sale and are used solely to illustrate the model. The item offered is original, vintage, and pre-owned, and is described accurately and in good faith. Before listing, the item is carefully cleaned, tested, and documented with detailed photographs and, where applicable, a video showing its actual condition and functionality. All functions mentioned in the description are tested and verified and are tested again before shipment as a final quality check. Photographs and any accompanying video form an integral part of the description and accurately represent the condition of the item at the time of listing. As this is a vintage item, minor signs of age and normal wear are to be expected and are consistent with its age. Any structural damage, missing parts, or non-functioning features are clearly disclosed in the description and/or visible in the images. Colours may vary slightly due to lighting conditions and screen settings. The item will be professionally packed using protective materials and double-boxed where appropriate. Shipping is tracked and insured. The item is handed over to the carrier in the same condition as documented prior to dispatch. The buyer is responsible for providing a correct shipping address and for collecting the parcel within the carrier’s specified timeframe. In case of non-collection, refusal of delivery, or incorrect address, Catawiki’s applicable procedures and conditions will apply. By placing a bid, the buyer confirms that they have carefully read the description and reviewed all images. This is a vintage electronic item. Due to its age and original components, slight variations in performance, accuracy, or behaviour may occur over time, even if fully functional at the time of testing. All stated functions have been tested and verified at the time of listing and again before shipment. The item has not been modified unless explicitly stated and is intended for normal use consistent with its age, or for collection and display.