German Cable and other things - Can you help?

[RadioCZ]

Hello,

I found these things and I'm not sure what exactly they are for. Can you help me, please?

IMG_20230402_175255_296 (1) (1).jpg

IMG_20230402_175454_485 (1).jpg

IMG_20230402_175501_418 (1).jpg

Thanks

[RadioCZ]

received_681572383969531.jpeg

[Andy]

The last one looks like a Dynamotor or 'rotary transformer'. They consist of a motor and a dynamo on one shaft. You apply (typically) 12 or 24 volts DC to the motor end and this turns the dynamo which usually generates a few hundred volts to power valve equipment. It's basically WW2 equipment, before inverters/switching supplies were invented.
Not sure what the top one is, could be a high-current shunt or maybe an RF induction coil for heating stuff?
The other things are obviously RF connection leads with long-forgotten connectors.

[RadioCZ]

Thank you