Polish field telephone vz. 36 is a classic field telephone of the MB system with inductor ringing.
Power supply: 3 V dry battery
Inductor: 90 V 20 to 30 Hz
Range: via field two-wire line approx. 40 km
Enclosure: aluminium
Source: SP7KQL
Power supply: 3 V dry battery
Inductor: 90 V 20 to 30 Hz
Range: via field two-wire line approx. 40 km
Enclosure: aluminium
Source: SP7KQL