Welcome,
@Dewcal, :headbang:
Just my 2 cents on your issues,
In my opinion,
if you intend to ,
"eventualy"'
add,
a Chime
and,
if,
"the info you provided",
is,
True,
Then,
I fear,
you will be,
"majorly/severely",
underpowering the device,
if,
What you stated, about your, "GROTHE GT3139 12v 1A...