Is it normal to read AC voltage between the chassis and earth ground on an st-70? I know that a 3 prong power cord can be added, but Dynaco produced thousands of units with the two prong.
2 posters
AC Voltage On Chassis
rudes- Posts : 61
Join date : 2012-03-07
Dale Stevens- Posts : 201
Join date : 2014-07-06
Age : 75
Location : Loris, SC
Rudes, what's your preamp? Could be coming from there. Some eq has a r/c network across the AC input. Over time the cap will leak to grd. Dale
rudes- Posts : 61
Join date : 2012-03-07
This is with no input on the amp. This seems normal if using a two prong power cord. I also tested my Pas pre-amp and also get a voltage reading from the metal case to earth ground.
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