Pentagrid Converter
The 1A7GT / VT-147 Vacuum tube is a glass octal type
used in superhetrodyne circuits
having battery power supplies. It requires an octal
socket and may be mounted in any position.
Electrical Data:
Filament Voltage ............................ 1.4 DC V
Filament Current .............................. 0.05 A
Substitutes .............. 1B7, 1C7, 1D7.