Stacy, I guess it’s worth observing that, although 6K yellow gold
solder will work nicely on brass and will match as long as the brass
is highly polished, as soon as the brass starts to tarnish, there
will be a lovely bright yellow gold solder line showing. Admittedly,
it is prettier than the grey line from Sil-Phos or any other "copper"
solder!
Judy Bjorkman
@JLBjorkman