Heathkit S-99 kit amplifier with manual. Bottom cover with feet present but no screws. Strictly spares/repairs only, untested, no plug. Requires attention from a competent person.
The Heathkit S-99 is a valve (tube) integrated amplifier built around a Williamson circuit topology, supplied originally as a construction kit. It uses a valve complement of EF86 and ECC83 input/driver stages with ECL86 output valves and a GZ34 rectifier.
