Lafayette TE-50 Operating Instructions Manual Download | Manualshive

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Summary of Contents for TE-50

Page 1: ...LAFAYETTE TUBE TESTER MODEL TE 50 OPERATING INSTRUCTIONS LAFAYETTE RADIO ELECTRONICS CORPORATION Printed in Japan...

Page 2: ...12 pin Compactron and Nuvistor tubes Be sure to insert the tube in the correct socket in all cases TOP CAP LEAD This lead supplied as the integral part of TE 50 is provided for connection to tubes ha...

Page 3: ...switch it provides a steady glow when an inter element short or leakage is present in a tube A flash of the indicator when switches are moved should be disregarded This is due to wiring and tube inte...

Page 4: ...is for line voltages between 105 and 115 volts When in doubt as to the voltage of an AC power line set switch to HI Like all emission type testers the Model TE 55 provides a means of making two basic...

Page 5: ...one of the switches is set to P indicates a short A slight glow may be disregarded when testing certain audio tubes such as the 6L6 50L6 etc These tubes have a high inherent leakage This however does...

Page 6: ...e following section HOW TO TEST FOR FILAMENT CONTINUITY Proceed as in the test for shorts or leakages Set either of the elemental slide switches listed in the filament continuity column to P with the...

Page 7: ...of the tube directly on the Replace Good portion of the scale Note Tubes listed in the tube chart more than once are multi purpose tubes and are equivalent to several tubes in a single glass envelope...

Page 8: ...tion at any one time Tester indicates short when one of the switches is set to P This occurs on all tubes tested Tubes are not shorted The elemental switch which causes the indicator to light is the o...

Page 9: ...that may cause a tube to act erratically An emis ion test will not show up these tube characteristics SYMPTOM The meter does not read to full scale on any tube Even new tubes do not bring the meter t...

Page 10: ...which proves to be defective within this period without charge to the owner for parts or labor incurred in such repair B After 90 day period is past we can supply any replacement part for Lafayette eq...

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