35 W per channel EL34 integrated valve unit kit of the early-to-mid 1960s - the "sleeper" EICO.
Valve chassis: HT rails stay live after switch-off; never power up on original electrolytics. Check the output transformers and the power transformer for overheating - replacements are unobtainable.
Marks that can be entered for this maker: Model / catalogue number, Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code.
The introduction year is not documented, so the model narrows nothing.
Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.
Evidence: Ohio University — vintage electronics archives · Glow in the Dark Audio — vintage restorations · +1 more