Re: Sounds Belle reel-to-reel heads
The service info is up top:
At any rate for serial 35000 up. Apparently earlier version had ECC83 instead of EF86 front end.
https://www.service-data.com/section.php/7622/1/a15935
It's actually a Sound Belle according to the service sheet.
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
|