Electronic Instrument Co. (EICO) · EICO valve kits

EICO HF-85

Valve preamplifier kit designed to sit with the HF-87/HF-89 (list price $65.95).

Catalogue code: HF-85
Years: 1959
Type: integrated amplifier kit
Valves & speakers: Valve preamplifier kit designed to sit with the HF-87/HF-89 (list price $65.95)
Lifecycle: retired
Confidence: Medium

Specifications

Technology: tube
Channels: 2
Inputs_outputs: phono, tuner, aux

Safety

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.

01 / Witnesses

What applies here

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.

02 / Bounds

The model year is a floor

Nothing predates 1959; components only push the date later.

03 / Value

What moves the price

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.