• Country
• United States of America (USA)

• Manufacturer / Brand
• Westmore; Fanwood, New Jersey

• Year
• 1959–1967 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 184963

• Number of Tubes
• 2

• Valves / Tubes
• 6C4 12AU7

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Tube Tester 501 - Westmore; Fanwood, New Jersey

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 19 x 8 x 16 inch / 483 x 203 x 406 mm

• Notes
• Westmore 501 Tube Tester. Made Between 1959 and 1967. This Tester was made by the Triplett Company and sold under the Westmore name. The same model from Triplett is a model 3444. This model has a 5kHz oscillator for a signal supply and can also read plate current up to 50ma. The Triplet 3444 and Westmore 501 were listed as a Labortory Grade tube Tester. This tester can use the tube manufactures data sheet to setup a test for a tube not listed in the roll charts.
  
  The only difference between the 501 and the 3444 is an added lamp in series with the AC line, as an overload indicator. This was also incorporated into the 3444A. This Tester was replaced in 1968 with the solid state Triplett 3444A.
  
  The 501 manual is similar to the 3444 manual, but rewritten and rearranged. It reads "anode" instead of "plate". The manual also has a guarantee for government contracts. Alan Douglas is concluding that the 501 was a model made by Triplett to fill a government contract (could have been for the F.A.A.) with a dummy corporation set up for the purpose.

• Net weight (2.2 lb = 1 kg)
• 25 lb 0 oz (25 lb) / 11.350 kg

• Price in first year of sale
• 349.00 $

• Source of data
• - - Data from my own collection

• Literature/Schematics (1)
• Tube Testers and Classic Electronic Test Gear (page 95.)

• Author
• Model page created by Tom Guest. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Westmore; Fanwood, New Jersey