The Dynaco Dynakit ST70 Stereo Amplifier Restoration Project

Dive into the second part of a meticulous restoration project for the Dynaco Dynakit ST70 Stereo Amplifier. Begin with the installation of the choke, comparing its specifications to the original using a Genrad 1650A impedance bridge. Follow the step-by-step process of carefully installing components, including switches, input jack board, and power-related elements. Learn about custom fabrication techniques for specific parts and the importance of maintaining a scratch-free finish throughout the restoration. Observe the assembly and installation of the rear jack kit, tube sockets, and power transformer, with attention to detail in positioning and wiring. Gain insights into the challenges of working with vintage audio equipment, including shimming techniques for tube sockets and safely handling heavy transformers. Conclude with power testing procedures using a Heathkit IM-11 VTVM, ensuring the proper functioning of the restored amplifier components.