ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
I carefully replaced the magnet base plate and core back into the magnet and frame assembly, it promptly wedged the sound coil between core and frame of course, then fitted the "jig" in place. Tightened the inboard screws to hold the jig to the magnet and frame first, making sure it was firmly in place, and then tightened the outboard screws finger tight.
With the dust cap picked away from the cone and holding the speaker in one hand it was a really easy task to adjust the screws whilst looking at the position of the core in the coil, I was able to centre it by eye very quickly and pushing on the cone confirmed that I had no scraping or binding of any kind....applied liberal amounts of epoxy and it is now drying on the worktop, looks a bit like something "Johnny Rotten" may have worn around his neck back in the seventies I know.....but such a good result. Anyone needing to repair a woofer just drop me a line and I will post it off (just dont forget where it lives ;~)
Craig
and a pic
Compliments, I tried the same on a M70 woofer, the base plate slipped on inserting and destroyed the voice coil
Collecting Vintage B&O is not a hobby, its a lifestyle.
I can see that happening, you need to be very careful putting the core back into the coil...they are quite fragile
Dom
2x BeoSystem 3, BeoSystem 5000, BeoSystem 6500, 2x BeoMaster 7000, 2 pair of BeoLab Penta mk2, AV 7000, Beolab 4000, BeoSound 4000, Playmaker, BeoLab 2500, S-45, S-45.2, RL-140, CX-50, C-75, 3x CX-100, 3x MCL2 link rooms, 3x Beolab 2000, M3, P2, Earset, A8 earphones, A3, 2x 4001 relay, H3, H3 ANC, H6, 2014 Audi S5 with B&O sound, and ambio