Wavetek 2015 - UK Vintage Radio Repair and Restoration Discussion Forum

trsomian · 19th Dec 2013, 10:09 pm

I have a Wavetek 2015 which is apparently OK, except that if one monitors a 240V AC supply for a few minutes the indicated voltage starts to drift down. I suspect a thermal problem with the input voltage divider, but does anyone have a better idea? Having had it apart, I could not easily see a resistor that looked like it would take hundreds of volts across it, but surely there must be one there somewhere. Does any body have a circuit diagram for it?

19th Dec 2013, 10:09 pm	#1
trsomian Hexode Join Date: Oct 2010 Location: Box End, Beds. UK. Posts: 271	Wavetek 2015 I have a Wavetek 2015 which is apparently OK, except that if one monitors a 240V AC supply for a few minutes the indicated voltage starts to drift down. I suspect a thermal problem with the input voltage divider, but does anyone have a better idea? Having had it apart, I could not easily see a resistor that looked like it would take hundreds of volts across it, but surely there must be one there somewhere. Does any body have a circuit diagram for it?