thank you very much for that joe , your a pure genious, for this is the exact set that im referring to, i now know what valves to hunt down, and the missing knob bit theres obviously 5 of them 1' tuner , 2 volume /on/off, 3.wave change switch ,4.second tuner condenser,[reaction] 5. aerial tuner,trf system, 
mystery almost solved. best regards and thanks maitiu
mystery almost solved. best regards and thanks maitiu
