Summary
The 6J7 was amongst the first group of metal valves to be released at the end of 1935. It is a sharp cut-off pentode. Rarely used as an RF amplifier because of its sharp cut-off characteristic, it was very popular for use as a resistance coupled audio amplifier.
6.3 V indirectly heated cathode.
Manufacturer: Tung Sol Lamp Works Inc., Newark, NJ, USA.
Physical Description
Sectioned metal bulb with octal base and top cap.
More Information
-
Collection Names
-
Collecting Areas
-
Acquisition Information
Donation from L. Godden, 14 Mar 1938
-
Manufacturer
Tung-Sol Lamp Works, Newark, New Jersey, United States of America, circa 1936
-
Inscriptions
Bulb: R/6J7
-
Brand Names
-
Classification
-
Category
-
Discipline
-
Type of item
-
Overall Dimensions
75 mm (Length), 32 mm (Outside Diameter)
-
Keywords