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THE AM BULLETIN BOARD => Technical Forum => Topic started by: kd1nw on October 14, 2018, 07:37:02 AM



Title: Ungrounding electrostatic shieid
Post by: kd1nw on October 14, 2018, 07:37:02 AM
Hi Folks,

It seems the electrostatic shield of my nc173 power transformer shorted to the secondary. Disconnecting it from ground fixes the radio but I just want to make sure there aren't any safety problems with doing this that I'm not understanding?

Thanks 73
Kevin


Title: Re: Ungrounding electrostatic shieid
Post by: MikeKE0ZUinkcmo on October 14, 2018, 09:41:01 AM
Don't see a problem so long as it doesn't/hasn't shorted to the winding in more than one place.   That would be noted in higher than normal power consumption and excessive transformer heating.



Title: Re: Ungrounding electrostatic shieid
Post by: kd1nw on October 14, 2018, 10:10:05 AM
Great thanks Mike


Title: Re: Ungrounding electrostatic shieid
Post by: WZ1M on October 15, 2018, 04:13:11 AM
When you say the secondary, do you mean the HV or filaments?
Regards,
TRS
Gary
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands