RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
***FOR SHIPMENTS TO THE USA, CUSTOMS DUTIES APPLY – EXCEPT FOR PRODUCTS MADE IN THE USA – THESE CUSTOMS FEES ARE THE RESPONSIBILITY OF THE BUYER***Preamplifier VintageBrand : DynacoModel ; PAT-5Year : 1974 - 1976Color : Gold Frequency response: 10Hz to 50kHz Total harmonic distortion: 0.007% Gain: 57dB (MM), 20dB (line) Signal to noise ratio: 70dB (MM), 90dB (line) Channel separation: 45dB (line) Output: 7V (Pre out Max) Semiconductors: 13 transistors, 2 ICs, 3 zener diodes, 4 diodes Dimensions: 13.5 x 14.25 x 11.75 inches Weight: 13lbsFor more informations, please contact us on emailHave a nice day***Service disponible en français***
The PAT-5 is a notable vintage preamp for buyers who like classic, no-nonsense hi-fi gear. At US$218, this sits well below the US$262 25th percentile and materially under the US$306 median, so it reads as a strong deal rather than just “reasonable.”
That kind of price makes sense for a respected, listenable linestage with real enthusiast following, especially if the unit is clean and complete. The upside here is straightforward: getting into a well-regarded Dynaco preamp without paying typical market money. Just make sure the listing isn’t hiding obvious scratchy controls, missing knobs, or a power-supply issue, since age-related service can matter more than cosmetics on gear like this.
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.
See all Dynaco listings on RADAR.
