• Country
• United States of America (USA)

• Manufacturer / Brand
• Jackson (The) Electrical Instrument CO., Dayton

• Year
• 1941–1947

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 193586

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

• Number of Tubes
• 1

• Valves / Tubes
• 30

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 & 1.5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Tube tester with integrated VOM 637 - Jackson The Electrical

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 375 x 160 x 370 mm / 14.8 x 6.3 x 14.6 inch

• Notes
• Jackson 637 is emmision tester with integrated VOM. It has 8 sockets as standard (UX4, UX5, UX6, UX7, 7 pin miniature, octal, loktal and six pin special) and provision for adding 3 more sockets. Shorts and noise test are also featured. VOM section features 1 mA, 10 ma, 250 ma, 10 A, 10 V, 100 V, 250 V, 500 V, 1000 V, 2500 V and 1 Ohm to 30 MOhm ranges. Neon test is also featured for searching for shorts and leaky condensers at 100 V AC. It has one battery cell D type (1,5V) for ohmmeter function.

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

• Mentioned in
• Radio Retailing (Radio & Television R.) (September 1946 page 140. November 1946 page 124.)

• Author
• Model page created by Sinisa Trlin. See "Data change" for further contributors.

• Other Models

• Here you find 64 models, 61 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jackson (The) Electrical Instrument CO., Dayton