thelonerider,
I can't believe no one has answered this. Yes, you can just swap in the erase head as the heads of both machine are electrically compatible. Personally, I would have someone with experience do the alignment as these are quarter track machines. Any skewing whatsoever will result in erasing audio from the secondary tracks. Find a good respectable hi-fi repair shop and make sure that they have an alignment tape and a scope and most of all experience.
By the way, the 4000 series, while robust is only a single motor machine. For not much cash you could easily upgrade to a three motor deck with solenoid transport. Just saying.
Best.
Norman
I can't believe no one has answered this. Yes, you can just swap in the erase head as the heads of both machine are electrically compatible. Personally, I would have someone with experience do the alignment as these are quarter track machines. Any skewing whatsoever will result in erasing audio from the secondary tracks. Find a good respectable hi-fi repair shop and make sure that they have an alignment tape and a scope and most of all experience.
By the way, the 4000 series, while robust is only a single motor machine. For not much cash you could easily upgrade to a three motor deck with solenoid transport. Just saying.
Best.
Norman