User manual

Appendix A: Performance Specification
A–10
WFM 90 & WFM 91 User Manual
A-9.
Power source
CATEGORY
DESCRIPTION
Battery REF: 6 C-sized cell batteries, or Tektronix
NiCad battery pack (Tektronix Part
No. 146-0107-00).
Battery Charge Time REF: Fast Charge: 550 mA.
REF: Slow Charge: 150 mA.
Power Consumption REF: Picture Mode: 5.5 Watts
Waveform Mode 7.2 Watts
Vector Mode 7.2 Watts
External Power REQ: DC Source of 11 – 18 Volts.