JAN CKR-6SA7

Octal 8-pin pentagrid converter (heptode structure) manufactured by Ken-Rad under historical military contract designation using single-ended construction where grid 1 acts as an oscillator grid. Equivalents: 6SA7, 6SA7GT, 6SA7G, VT-150, VT-150A, CV1966, 6А7. Real-Life Examples: Hallicrafters S-38 shortwave communications receiver, Zenith 6D525 "Bozo" radio, Motorola All-American Five (AA5) tabletop radios.