02-26-2022, 05:00 AM
(This post was last modified: 02-26-2022, 05:01 AM by journeyman.)
It turns out that this Giulietti Jet is from 1958. We replaced the red Astrons and the cap can and it is running without sputtering now. As new as those red caps looked, most were leaking small amounts of voltage and the amp would start sputtering after about a half hour of operation. It seems to run with a little more 60 cycle hum than I'd like. I guess this could be addressed with more filtering, but too much filtering can make the amp stiff. I'm thinking it's a grounding issue and I don't know how to address that. Any siggestions?