• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1973

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 214467

• • alternative name: Pla Hermanos y Cía

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

• Number of Transistors
• 25

• Semiconductors
• SC148 SC149 MC140 BD137 2N3055 BDX60 BY126 BZY88

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 125; 220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 60 W (100 W max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Montana 1589 - Optimus; Gerona

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 350 x 100 x 270 mm / 13.8 x 3.9 x 10.6 inch

• Notes

• Listado un único semiconductor por tipo.
  Halbleiter teilweise mehrfach vorhanden.

• Net weight (2.2 lb = 1 kg)
• 8 kg / 17 lb 9.9 oz (17.621 lb)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Marcelino Iniesta Fernandez. See "Data change" for further contributors.

• Other Models

• Here you find 197 models, 131 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona