UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - AKAI M-9 Tape recorder/player.

TIMTAPE · 24th Mar 2023, 4:12 am

Continuing the theme of ideas for a repair to the cam, killing time in a hobby store this morning I saw for sale brass collars with a pre-tapped metal thread and the correct Allan screw and wrench included. They came in various imperial sizes. I took a quick photo below.

I wonder if this would be useable if bonded to the remaining cam and epoxy built up around it and the cam for strength. As the collar is made of brass, strength at the screw area should well exceed that of the original metal used by Akai. Perhaps a brass band or strip could be fashioned to bond to the outside surface of the collar and extending either side to the undamaged edge of the cam for added strength.
An advantage of this approach would be that precise adjusting of the cam's height and angular position on the shaft would be no more difficult than with the original factory cam.

24th Mar 2023, 4:12 am	#53
TIMTAPE Octode Join Date: Jul 2006 Location: Perth, Western Australia Posts: 1,969	Re: AKAI M-9 Tape recorder/player. Continuing the theme of ideas for a repair to the cam, killing time in a hobby store this morning I saw for sale brass collars with a pre-tapped metal thread and the correct Allan screw and wrench included. They came in various imperial sizes. I took a quick photo below. I wonder if this would be useable if bonded to the remaining cam and epoxy built up around it and the cam for strength. As the collar is made of brass, strength at the screw area should well exceed that of the original metal used by Akai. Perhaps a brass band or strip could be fashioned to bond to the outside surface of the collar and extending either side to the undamaged edge of the cam for added strength. An advantage of this approach would be that precise adjusting of the cam's height and angular position on the shaft would be no more difficult than with the original factory cam. Attached Thumbnails Last edited by TIMTAPE; 24th Mar 2023 at 4:24 am.