@terry9
I have read that this is a tape pre head amp input and not just a labelled line input. It is also labeled tape head and not tape input. It is also positioned along with the mm input. I think the Marantz 7 preamp might have this too. Watch the “PNWAS tape meeting with Ki Choi” on YouTube. He talks of this.
https://m.youtube.com/watch?v=TY6V5AahDU0
This guy probably knows as much as anyone about reel to reel.
I have read that this is a tape pre head amp input and not just a labelled line input. It is also labeled tape head and not tape input. It is also positioned along with the mm input. I think the Marantz 7 preamp might have this too. Watch the “PNWAS tape meeting with Ki Choi” on YouTube. He talks of this.
https://m.youtube.com/watch?v=TY6V5AahDU0
This guy probably knows as much as anyone about reel to reel.