Dezimeter-Gerät

DMG 3G

This apparatus is the old version of the set type DMG 3aG

I have decided to reproduce this document as it employed split-anode magnetrons

 

DMG 3G old version

The main difference between its successor and this version is the transmitter/front-end stage. The second module from the top is the receiver module, which is having a range of neon bulbs which should indicate proper or system failures. Although, the first manual of the new type DMG3aG showed similar controlling bulbs the bulk of Rudolf installation lacked these indicators.

 

DMG3G (Rudolf?) transmitter module

 

Viewing now the DMG3G transmitter module from the rear side

 

Principle schematic (Anlage 4) of DMG3G (old version)

Please double click on the drawing as to open it in pdf

 

DMG3G (old version) principle schematic of the transmitter stage (Anlage 5)

Please double click on the drawing as to open it in pdf

 

DMG3G (old version) Principle schematic of the receiver (Anlage 6)

Please double click on the drawing as to open it in pdf

 

DMG3G (old version) automatic receiver tuning (Anlage 7)

Please double click on the drawing as to open it in pdf

The only aspect to which I cannot give a sound answer is what magnetron type is concerned. Current consideration brings me to the conclusion that it might have been type RD4Ma. Consider also our Telefunken data sheets at: Telefunken valves. See photo 2 for the RD4Ma magnetron base. 

It is nevertheless clear that the mounting frame of DMG3G (old) and DMG3aG where actually equal. Although, the power supply (lowest module) was not as advanced as the one employed in the modified DMG3aG

 

 

Back to, or proceed with: Handbooks papers and product information

Back to, or proceed with: Type number wizard

Start