The PVS-5 was produced in 3 versions, the A, B and C.
Device
Information
Image
AN/PVS5A
First production model introduced in 1972. Uses a BA-5567A/U battery inserted into a compartment underneath the device. Some A models were modernised with an outer shell that used standard AA batteries.
AN/PVS5A as seen from the front, with BA-5567A/U battery
AN/PVS5B
Can use two AA batteries installed in a compartment running sideways along the top of the device.
AN/PVS5C
Can use two AA batteries, each installed in their own compartment on either side of the device.