genera-tv: General Television: 49 L49 [Radio] - Power cord question

This is the 1st 3-wire power cord antique radio that I have come across that I am in the process of restoring.

I need to replaced the crumbling power cord and see that it has 3 wires. One live wire goes to the T1 antenna connection. One live wire goes to the on/off volume switch and the 3rd wire connects to the 35Z5GT Half-Wave Vacuum Rectifier Power-supply tube, however the other end of this wire does not make a connection at the plug itself. 

I am confused! I would think this might be a resistance wire (R1 - 10 ohm)?

I don't understand how this works if the end is not connected to something at the plug end.

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Hi Greg,

a schematic would be helpful, but is not available here. Most probably this isolated third wire was used as an crude antenna that capacitively couples the RF from the parallel powerline cord. I would no longer keep this and only use a two-wire power cable, esp. for safety reasons and because the power grid is often prone to interference. It is better to use a separate isolated random wire far away from the mains cable as a new antenna. Never connect a mains pole to the radios antenna input.

EM

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Hi Eilert, thanks for your help.

I am attaching the schematic so it can be uploaded.

usa_general_tele_rad_49_sch1.pdf

Thank you.

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