[Jukebox-list] Seeburg 161

Hi all I could use some guidance… I’m working on my Seeburg 161 I purchased. It has a HFMA2 amp that was rebuilt by the previous owner . I have two issues first is…as a record begins to play there is no hum however as the AVC kicks in the hum begins and increases and is quite loud then gets drowned out by the music until the end of the song where it is very loud until the mute switch kicks in. Any thought?

Second issue is the mech sometimes “jitters” or starts and stops rapidly after record play it will eventually begin to scan properly.

Any guidance is appreciated… Don