I am in the process of rebuilding an SCA-35 chassis that was stripped of the transformers, tubes,power cord and faceplate. Should I use a 3 prong cord to have an earth ground or stick with the 2 prong cord?
4 posters
SCA-35 rebuild
evoroadster- Posts : 45
Join date : 2015-06-16
Age : 74
Location : Honolulu, Hawaii
peterh- Posts : 1836
Join date : 2012-12-25
Location : gothenburg, sweden
Installing an IEC well is in my opinion the optimal solution. Using a proper grounding is a good
route to suppress hum.
route to suppress hum.
GP49- Posts : 792
Join date : 2009-04-30
Location : East of the sun and west of the moon
Not to be argumentative but TOO MANY grounds creates ground loops which can cause hum. If you have two pieces of equipment, each with its own three-wire line cord with ground, and they are interconnected by shielded audio cables, you have created a ground loop, right there. Repeat this with the number of units in a typical hi-fi system and you will create lots of ground loops. If you have a tuner or A/V receiver or other unit with a cable TV hookup, you will add yet another level of ground looping between the AC line ground and the cable system ground.
evoroadster- Posts : 45
Join date : 2015-06-16
Age : 74
Location : Honolulu, Hawaii
Thanks for the input so far. I will go ahead with the 2-prong cord for the rebuild.
nmchiefsfan- Posts : 77
Join date : 2012-03-21
You could install a 3 wire or IEC and if you have hum issues use a 3 prong to 2 prong adapter to eliminate the ground issue.
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