The Agilent HP 1900A Pulse Generator Mainframe accepts all 1900 Series plug-ins.
Other Info:
Provides all required voltages including the special positive and negative variable supplies for the 1915A Plug-in. Holds any combination of quarter-size or half-size plug-ins.

Plug-ins are completely interchangeable and may be interconnected by internal wiring and switches or by external cables. 115 or 230 VAC input, 50-60 Hz.PULSE GENERATOR