For example: Agilent E4440A or Anritsu 68369
Elgar
Elgar CW1251P
CW1251P 1250 VA, ContinuousWave Power Source - Programmable - CW Series
Category: AC Power Supplies
Elgar CW2501M
AC Power Source, 2.5 KVA, 1Ø, 135/270 VAC, 45 - 500 Hz (1 KHz optional)
Category: AC Power Supplies
Elgar CW801M
AC Power Source, 800 VA, 1Ø, 135/270 VAC, 45 - 500 Hz (1 KHz optional)
Category: AC Power Supplies
Elgar EW801-1-115
800VA, Programmable AC Power Source (No GPIB & 115 VAC Input)
Category: Plug In / Part / Component / Module
Elgar EW801-1-230
800VA, Programmable AC Power Source (No GPIB & 230 VAC Input)
Category: Plug In / Part / Component / Module
Elgar EW801-2-115
800VA, Programmable AC Power Source (GPIB & 125 VAC Input)
Category: Plug In / Part / Component / Module