UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Uncle Bulgaria · 21st Mar 2019, 5:20 pm

Right. So I'll have to beg, borrow or steal one of those then! Or supply a tape for someone to record a test tone on.

The head that's on there has 'keystone' wear which I will endeavour to lap off. As I mentioned above, Terry Martini-Yates thinks it's pretty worn and says these heads weren't supposed to be re-lapped. He has spares so I haven't anything to lose by trying, and if I get it square at least I'll have a chance of setting it up vertically.

Is there anything else in the tape path that can affect the alignment? Should I measure where the reels are off the deck, as the hubs have grub screws that presumably mean they can be moved up and down the spindles a certain amount for adjustment.

21st Mar 2019, 5:20 pm	#68
Uncle Bulgaria Nonode Join Date: May 2016 Location: Cornwall, UK. Posts: 2,335	Re: Ferrograph 4A: Restoration advice needed Right. So I'll have to beg, borrow or steal one of those then! Or supply a tape for someone to record a test tone on. The head that's on there has 'keystone' wear which I will endeavour to lap off. As I mentioned above, Terry Martini-Yates thinks it's pretty worn and says these heads weren't supposed to be re-lapped. He has spares so I haven't anything to lose by trying, and if I get it square at least I'll have a chance of setting it up vertically. Is there anything else in the tape path that can affect the alignment? Should I measure where the reels are off the deck, as the hubs have grub screws that presumably mean they can be moved up and down the spindles a certain amount for adjustment.