Charging Source: 100 VAC to 130 VAC, 48 Hz to 440 Hz
TM 500 Instruments in their mainframes may be operated with the Tek 1105 Battery Power Supply when suitable ac line power is not available. The Tektronix 1105, Power Supply, is rugged and portable, operating on internal batteries or an external dc source. Operating time is dependent on the number and type of plug-ins being powered, and their operating mode.