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Tested and Working. This was pulled from a working environment. Please look at all pictures before purchasing, only what is included in pictures is included in sale.Will ship same day purchased in a professionally packaged box. (D)2D SS
A US$70 asking price for this vintage Dynaco FM-5 tuner is an undeniable bargain, sitting far below the 25th percentile of US$256 and the median of US$492 for comparable units. This is a strong deal that offers massive upside for a fellow enthusiast willing to invest in service, as the FM-5 is the transistorized successor to the beloved FM-3 and features practical extras like auxiliary inputs and a volume control that the tube model lacks. Even if the listing notes unknown condition, the price gap is so wide that a basic recap and alignment could yield professional-quality sound for pennies on the dollar, a sentiment echoed by owners who report terrific results after servicing.
The FM-5 remains well-regarded for its clean, professional sound and robust transistor design, making it a worthwhile buy at this price point regardless of minor age concerns. While unknown condition implies a potential need for a full service kit—which historically cost around US$200 and delivers high performance—the US$70 entry price leaves plenty of room for that investment while still staying well under market value. This listing represents a genuine buying opportunity to secure a classic tuner with meaningful features at a price that defies typical market expectations, offering significant value for anyone looking to add a reliable, original Dynaco to their system.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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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