After a long, long sleep: ML-335

@musicfan2349   I seem to remember an article i read saying Levinson (Harmon) no longer services ML amps that are older than before Harmon purchased Madrigal Audio Labs which included Levinson--ie amps they didn't manufacture--but Harmon will refer owners to a third-party expert to fix/service--you should call them first to see if that's true or my memory is failing (which it is ever more every day!)

Harman International purchased ML. There has never been a "Harmon" audio company.

From a couple of posts above:

https://us.marklevinson.com/service-centers.html

Mark Levinson Service Centers

the article i read said they will only service Mark Levinson that they manufactured -- ie after the bought the brand in 2003.  Article said no pre-2003.  But i read that several years ago so maybe they changed their mind?

Circling back: I spoke to Chris at http://www.pyramid-audio.com/levinson.html

He was quite friendly and helpful regarding my ML335. As you can see at the link they have quite a bit of experience with ML gear. They also have engineers that specialize in the differing series, e.g. 400 vs 300. 

He also gave me some great advice concerning packing and how the original foam may be deteriorated enough that it won't do the job. How thoughtful is that? He also said that UPS Ground will be fine.

Without seeing it he guesstimated $1600, $2200 if it needed the four big caps replaced. Considering the price of audio these days? Money well spent. They'd also check the smaller ones that can melt their boards if they fail. (yikes!) So yeah, I'll be sending it in here in a few weeks. Will update y'all in a few months.

Thank you again for your helpful advice and encouragement.

Happy listening.