HP 8640B SIGNAL GENERATOR 004 FOR ILS VOR VHF RECEIVER - PARTS

The output level knob on the left (Photograph four) when adjusted didn't seem to affect the display of the output dBm on the spectrum analyzer. We don't have the means to test the full function of the system, so we are offering here in the condition described. The 512 to 1024 dBm range has a lot lower power output. System frequency output moves around a little but very slowly and steadily counts downward. Please refer to photographs, equipment does not have any bottom feet present, it is offered here for parts only.