• Country
• United States of America (USA)

• Manufacturer / Brand
• Grebe, A.H. & Co.; Richmond Hill (NY)

• Year
• 1921

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 192229

• • Brand: Synchrophase

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: RCVF Variable Air Condenser Unit - Grebe, A.H. & Co.; Richmond

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• Grebe Type RCVF Self-balanced Variable Air Condenser with a maximum capacity of .0008 microfarads. The self-balancing feature of the variable air condenser is secured by having an equal number of rotary plates mounted on opposite sides of the shaft thus permitting the rotary plates to be placed in any position without disturbing the balance. This was a boxed instrument for the experimenter similar to the AMRAD boxed sets of the same time period.

• Price in first year of sale
• 18.00 $

• Literature/Schematics (1)
• 1921 Mesco catalog page 89

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 188 models, 124 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)