Dynaco SCA-50 (1960–1966)
A medium power solid state stereo control amplifier built by Dynaco from 1960 to 1966, noted for its high-quality construction and flexible design.
Overview
The Dynaco SCA-50 is a solid state stereo control amplifier introduced in 1960 and produced until 1966. Manufactured by Dynaco, it was designed as a compact, integrated solution for stereo audio systems. Described in service documentation as being of "exceedingly high quality," the unit was engineered with an emphasis on reliability and functional flexibility. Its design supports straightforward serviceability, and original manuals remain available from multiple archival sources.
Specifications
| Power output | 25 watts per channel into 8Ω (stereo) |
| Dimensions | 13-1/2 x 12 x 4-1/4 inches |
| Weight | 15 lbs |
Design
The SCA-50 uses solid state technology throughout, reflecting Dynaco’s transition into transistorized audio equipment during the early 1960s. The internal layout emphasizes service access and long-term durability, with thorough planning noted in the original service manual to support operational flexibility.
Market
A used unit in excellent condition was listed for $200 on Reverb in 2020. Some owners report units arriving with multiple issues, suggesting aging components may require servicing—commonly including capacitor replacement—to restore full performance.
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