Quote:
Originally Posted by Ted Kendall
OK - the short answer is that the TK5 head looks fine and the 819 heads are shot.
The head structure is mostly of brass, with the nose of the polepieces inset - this is the bit in bright metal which you can see on the TK5 head. The whole is potted in the red compound. The polepieces carrying the gap itself are quite shallow to reduce losses, and on the 819 heads these have worn through to the point where the gap as such has gone, leaving the stubs of the polepieces, As a rule of thumb, if you can see the gap with the naked eye on a record or replay head, it is worn out.
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Thank you Ted, at least the TK 5 head sounds like it might be usable. Even though the 819 heads are shot, out of pure interest I will have a look at any signals (as rubbish as they maybe) that might be produced out of the heads to see why no sound at all.
I do have one replacement head on its way (hopefully a lot better condition) and a possibility of another replacement head source.
What are the 2 narrow black vertical sections on the TK 5 head ?
If the heads were relapped it was not me
David