• Country
• Great Britain (UK)

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: GB

• Year
• 1948 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 305336

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Material
• Metal case

• from Radiomuseum.org
• Model: Crystal Microphone - Unknown - CUSTOM BUILT: GB

• Dimensions (WHD)
• 65 x 95 x 35 mm / 2.6 x 3.7 x 1.4 inch

• Notes

• Crystal Microphone

• Net weight (2.2 lb = 1 kg)
• 0.1 kg / 0 lb 3.5 oz (0.22 lb)

• Author
• Model page created by José Manuel Silvestre. See "Data change" for further contributors.

• Other Models

• Here you find 118 models, 108 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: GB