Tube tester L3-3 {Л3-3} old

• Country
• Soviet Union

• Manufacturer / Brand
• Sovnarhoz - Moskovskij Sovnarhoz, Moscow

• Year
• 1970–1989

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 89287

• Picture
• Schematics

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

• Number of Tubes
• 15

• Valves / Tubes
• 6П1П 6П1П 6П1П 6П1П 6Н3П 6Н3П 6Н3П 6Ж3П 6Ж3П 6Ж3П 6Ж3П 6Ж3П СГ15П СГ15П СГ15П

• Power type and voltage
• Alternating Current supply (AC) / 115, 127, 220 Volt

• Material
• Metal case

• from Radiomuseum.org
• Model: Tube tester L3-3 {Л3-3} [old] - Sovnarhoz - Moskovskij

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 510 x 312 x 225 mm / 20.1 x 12.3 x 8.9 inch

• Notes
• Current: 115V/400Hz or 127,220V/50Hz. Power: 115V/400Hz or 127,220V/50Hz.
  This is one of the best tube testers. It is capable of testing in ranges of: Ua 5-300V stabil., 150mA max., Ug2 10-300V stabil., 15mA max., Ug1 -0,5 to -100V in two ranges, leak current resolution 2µA, Rk 0-600 ohm in 15 ranges, Ck 0-10-100 µF, Uf 1-14V fine reg., 1,2A, Uf 2,5-7V in 5 steps 3A max, Uf 10 and 13V, 1,7A max plus 15 and 25V, 1,3A max. All Uf voltages AC or DC. S (Gm) is measured in 7 ranges from 0,75-75 mA/V.(µmhos) Ia is measured from 1,5 to 150mA in 7 ranges. Test signal is 1400 Hz, filter to suppress harmonics. Internal calibration circuits for easy and extremely accurate calibration of S(mA/V) and Leak (µAmp). Symmetrical ac voltage up to 2x500V available for testing rectifiers full load.
  Warning: Many test cards are incorrect and may even lead to damage of the equipment. Not recommended for common use !

• Net weight (2.2 lb = 1 kg)
• 20 kg / 44 lb 0.8 oz (44.053 lb)

• Source of data
• -- Original-techn. papers.

• Literature/Schematics (1)
• -- Original-techn. papers.

• Other Models

• Here you find 2 models, 2 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sovnarhoz - Moskovskij Sovnarhoz, Moscow