The E53 receiver was conceptually based on the E52 receiver and followed its frequency range. Far fewer receivers were produced than the E52 type. It was a precision receiver with the projection scale individually calibrated.
Range: 23.7 to 70 MHz
Operations: A1, A3, F3
Sensitivity: better than 1 uV
Power supply: 110/220 V mains
Source: own image collection
Range: 23.7 to 70 MHz
Operations: A1, A3, F3
Sensitivity: better than 1 uV
Power supply: 110/220 V mains
Source: own image collection