SEIMENS S.B 83 RECEIVER

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ABOVE IS THE SEIMENS S.B 83 RECEIVER,  A FAIRLY BASIC DESIGN, HAVING ONE VALVE USED AS THE DETECTOR AND ONE VALVE USED AS THE A.F AMPLIFIER.IT COVERED THE 600 METRE WAVELENGTH AND THE 30 60 METRE WAVE LENGTH USING TWO PLUG IN COILS. 

 

 

 

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