2000.3.1: Diathermy Unit, 1948

Additional Images

2000.3.1: Diathermy Unit. Front view
Image No. 3751 Front view; Photographer: Helen Kingsley

Object Description

The Birtcher 'Challenger' model 850, F.C.C. type approval number D-529. A short wave diathermy unit with a tri-fold induction head. Consists of a metal unit with cabinet underneath on four caster-feet. A power output unit gauge 0 - 500, an Output dial 0 - 10 and a Selector dial are situated on the top part of the unit. Components in cabinet: two boxes each containing a self retaining elecrode, patent no. 2110,392 part no. 632, [CUFLEX™, US patent no. 2110392]; lidded box containing two 8 x 10 inches pad electrodes No. 646; power tube type UX-CV-11 in box; two boxed electron tubes CL-19 [box patent 2,368,753] and an instruction and information sheet.

Object Classification

Accession Number: 2000.3.1
Collection: Therapeutics
Date: 1948

Object Dimensions

  • Height: 167 cm
  • Width: 59 cm
  • Depth: 53 cm

Object Parts

  • a) Diathermy Unit
  • b) Instruction and information sheets
  • c) Boxed electron tube
  • d) Boxed power tube
  • e) Boxed electron tube
  • f) Lidded box for self retaining elecrode
  • g) Self retaining elecrode
  • h) Lidded box for self retaining elecrode
  • i) Self retaining elecrode
  • j) Box lid - pad elecrodes
  • k) Box base - pad elecrodes
  • l) Pad elecrode
  • m) Pad elecrode

Object Materials

  • card,
  • cardboard,
  • ceramic,
  • enameled paint,
  • filament,
  • glass,
  • metal,
  • paper,
  • plastic,
  • printing ink,
  • rubber,
  • steel

Acquisition Detail

  • Manufacturer: Birtcher Corporation (part d manufactured by United Electronics Company Newark 2, New Jersey. Manufacturer for parts c & e Radio Corporation of America, Harrison, N.J.)
  • Supplier: Professional Equipment & Supplies
  • Owner: Dr. Webster T. Maguire
  • History of Use: Used by Dr. Webster T. Maguire, M.D. [1910-2002] who had a practice in Vancouver from 1939 until retiring in 2001. The instrument was used in the treatment of any inflammatory process by the use of heat.