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- Thu Apr 04, 2019 2:54 am
- Forum: Trainwreck Discussion
- Topic: buzz on presence 16ohm NFB tap - new mojo TW35 xfo
- Replies: 1
- Views: 830
buzz on presence 16ohm NFB tap - new mojo TW35 xfo
Replaced the output xfo on Express A4 build (with 6V6s for now) with a new mojo 791 TW35 6.6k xfo, and now always get buzzing if NFB connected (120Hz?). Reversed .1uf cap polarity, no help. Removing NFB, all seems to work well, at least at low volume levels, so far. Is NFB needed to clean up at high...