Omnitron to detect gold and silver

[Pahom]

Originally Posted by Mike(Mont)

I had to replace that twist control, can't remember now but it must have been "scratchy" (receiver twist control).

It?s clear about the regulator, the variable resistor was damaged, it?s not clear what receiver you?re writing about. And as for the headphones, you?re right, in high-impedance headphones you can hear hissing from the frames and it?s even not bad at catching the whistling of energy-saving lamps. What receiver are you writing about?