This is the vibrating power supply for the 15W.S.E.a transceiver. It is used in place of the 90 volt anode battery in field conditions where contunual operation is required with the only option for power being rechargeable batteries (accumulators).
Exterior of the power supply.



Manufacturer data and power specs.



Manufacturer data and power specs.



Transceiver connector pad. Note the "L" and "R" terminals. What are they for?



Detail of the vibrator compartment door.



Battery connectors. The wires have seen better days.



Closeup of the battery connection block.