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Item Details • Brand: Dynaco • Model: SCA-35 • Type: Tube integrated stereo amplifier • Year: 1960s • Tubes: Complete set included per rear tube layout chart (V1 PC-11, V2 12AX7, V3 7199, V4–V8 6BQ5/PC-10) • Inputs: Phono (Hi/Lo Level, Ceramic), Radio, Tape Head, Tape Amp, Spare • Country of Manufacture: USA (Philadelphia, PA)Condition • Powers on, power indicator lights • Complete set of tubes included • Not tested for sound quality • Safety note: tube-era, mains-connected unit — inspect internal wiring and have a qualified technician service/recap before extended use • Front panel shows light wear consistent with ageShipping & Handling • Handling time is 1–7 business days; packed securely. • Combined shipping available on multiple purchases. • Tariffs may apply and are the responsibility of the buyer. Items made in America are tariff exempt.Buyer Note • Questions welcome before purchasing. • Thank you for purchasing with us!
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Dynaco emerged in 1955 from Philadelphia, Pennsylvania, when hi-fi pioneer David Hafler partnered with engineer Ed Laurent to form the Dyna Company. Hafler brought expertise from his earlier Acrosound venture, which produced high-quality output transformers starting in 1950. The duo targeted the burgeoning hi-fi market with affordable, DIY-friendly kits, launching the Mk II 50-watt tube amplifier shortly after incorporation and relocating to a former chocolate factory for expanded operations.
The brand specialized in tube amplifiers that defined its legacy, including the iconic Stereo 70—over 350,000 units sold—alongside models like the Mk III. Dynaco expanded into FM tuners such as the FM-1, bookshelf speakers like the A-25, solid-state amps, and innovative systems like the Dynaquad for simulated four-channel sound. Late-1970s efforts included the Phase III speakers, though the company shifted toward kits and components emphasizing value and performance.
Dynaco holds a revered position as the era's top-selling tube amp maker, beloved by budget-conscious audiophiles for reliable, high-value hi-fi. Liquidated in 1980 after Hafler's sale to a toy firm, its vintage gear remains a collector's staple, with later revivals by Panor Corporation producing replicas for tube enthusiasts seeking that classic warmth and build-it-yourself appeal.
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