• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1952 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 342295

• • alternative name: Pla Hermanos y Cía

• Number of Tubes
• 5

• Valves / Tubes
• HCH81 HF93 HBC90 HL84 HY90

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• AC/DC-set / 125 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 2.5 W (max.)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 501 - Optimus; Gerona

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 290 x 210 x 210 mm / 11.4 x 8.3 x 8.3 inch

• Notes

• See also the similar model Optimus 504

• Author
• Model page created by Alberto Sanna-Alonso. See "Data change" for further contributors.

• Other Models

• Here you find 197 models, 134 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona