• Country
• United States of America (USA)

• Manufacturer / Brand
• EICO (Electronic Instrument Co.Inc.) Brooklyn

• Year
• 1959 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 146648

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• ECC83 ECC82 ECC82 6X4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 - 120 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: High Fidelity Master Control HF-61 - EICO Electronic Instrument Co.

• Shape
• Book-shelf unit.

• Notes

• AC operated preamplifier. Sams photofact set 487 folder 4 date 6-60 features the Eico models HF61 and HF61A as the same schematic.

  This is somewhat misleading, though, as Sams 487-4 does not give details of the HF-61, having the schematic & parts list only for the HF-61A (external power supply variant of this model). Information for the HF-61 (AC powered) can be found in the original EICO owners manual.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 487 folder 4 date 6-60)

• Literature/Schematics (2)
• - - Manufacturers Literature

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 174 models, 170 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from EICO (Electronic Instrument Co.Inc.) Brooklyn