This item has been shown 28 times.
Frequency Range: 300 MHz - 5 GHz.
At 300 MHz the slotted line covers one-half wavelength. Operation below 300 MHz is possible with slightly reduced accuracy.
Type 874 sexless connector on each end of slotted line.
Two type 874 connectors are moved along slotted line section, controlled by a tuning dial knob.
Tuning dial appears in good condition. Tension cord is original.
Turning dial clock-wise moves unit to right with some slippage.
Turning dial counter clock-wise to move unit to left needs assistance.
I did not attempt to tighten the tuning cord tension to improve this.
Replacement of nylon cord is described in the manual (find online).
Includes wooden box 5.5x6.5x29.25”, as shown in pictures.
I have not tested this unit. As is, as shown in pictures.