{gbW: '933', gbH: '819', mW: '427.0', mH: '375', kb: '173 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]By Courtesy Of EBAY User: richards*auction', title: 'National Radio Professional Tube Tester 70 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '729', gbH: '700', mW: '390.0', mH: '375', kb: '86 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '933', gbH: '656', mW: '500', mH: '351.0', kb: '95 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '640', gbH: '480', mW: '500', mH: '375', kb: '49 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '933', gbH: '616', mW: '500', mH: '330.0', kb: '94 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '528', gbH: '440', mW: '450.0', mH: '375', kb: '37 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '528', gbH: '536', mW: '369.0', mH: '375', kb: '57 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]Supplement Chart -- Bild aus ebay, Verkäufer uncle-papa', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '544', gbH: '544', mW: '375.0', mH: '375', kb: '92 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]aus ebay, Verkäufer sx28', title: 'National Radio Professional Tube Tester 70 uploaded by Gottfried Silberhorn (2)', ite: '2'}{gbW: '933', gbH: '865', mW: '404.0', mH: '375', kb: '176 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]By Courtesy Of EBAY User: richards*auction', title: 'National Radio Professional Tube Tester 70 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '933', gbH: '1035', mW: '338.0', mH: '375', kb: '173 KB', notes: 'For model Professional Tube Tester 70, National Radio Institute (NRI); Washington, DC:[br]By Courtesy Of EBAY User: richards*auction', title: 'National Radio Professional Tube Tester 70 uploaded by Franz Scharner (2)', ite: '2'}
- Signal Corp I-177 tube tester calibration. The War Department Technical Manual is dated August 1944, and the tester calibrated in this article is dated April 1945. The unit is extremely well-built. All voltages are automatically adjusted when the user sets the Line.
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