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Thread: Floppy BKS Ribbon Tweeter - best fix?

  1. #1
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Default Floppy BKS Ribbon Tweeter - best fix?

    Hi - as you can see from the photo my formerly taut ribbon tweeter had a mishap involving overzealous use of a vacuum cleaner and needs repairing. This has happened once before and, at the time, we contacted the owner of BKS (I think his name is Benkt ) who kindly fixed it for us. BKS seem to have gone now but we do recall him advising the use of a matchstick to "re-crinkle" the ribbon if it should happen again. Can anyone advise on this or on who best to approach for a fix? IMG_4850.jpg

  2. #2
    Join Date: Jan 2011

    Location: Bristol, UK

    Posts: 278
    I'm Stephen.

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    I used to have the 128 version so the ribbon was longer. This looks like a 107? Yes I did damage mine with the vacuum cleaner. It’s easy to remove and roll into a 35mm film container and returned to factory who reshaped it for free. I guess he has retired now so sorry I don’t know of any other option if return to base is no longer an option.

  3. #3
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Default

    Hi cyclopse,

    Thanks for your response - yes these are the 107s. I would have thought the problem we have both experienced is fairly common so there must be people out there who know the 'fix' for it.

  4. #4
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 6,878
    I'm Lawrence.

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    The maker was called Bent Kåre Sørensen hence the name BKS. I bought a couple of pairs of these ribbons for about £95 per pair a few years ago. I got them off a dealer in Denmark who told me that sadly Bent had passed away. I tried him again more recently for a pair of the longer 128 ribbons but got no response to my two emails. I can try and dig out his details of you want to try.

    Sent from my BLN-L21 using Tapatalk

  5. #5
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Default

    Hi Lawrence,
    Thanks - we had a similar experience and had conversed with Bent a couple of times but can find no record, weirdly, of the conversation. However, my husband is certain he mentioned the fix was very easy and could be done refolding the aluminium strip by using matchsticks. I wondered if anyone else knew of this?
    I am really sorry to hear of Bent's passing - he was very kind, didn't charge us for fixing the ribbons last time. I find it sad that there seems to be no trace of him at all. I shall ask a Danish friend if they can find more info.

    If you aren't getting any response form the people you used last time, no worries, I might simply try ringing around a few companies to see if anyone can help locally.


  6. #6
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,625
    I'm Geoff.

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    Ribbon pleating tools are available. Employing one may re-tension the ribbon, but it requires great care.

    https://www.ebay.co.uk/itm/Ribbon-Pl...-/182166708740
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  7. #7
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Thumbs up

    Thank you

  8. #8
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Thumbs up Update

    I bit the bullet and repaired the ribbon myself by removing it from the clamps and using two matchsticks to recrimp it.... it worked beautifully and was remarkably easy. Care needs to be taken not to damage the fragile ribbon but other than that... perfect

  9. #9
    Join Date: Jan 2011

    Location: Bristol, UK

    Posts: 278
    I'm Stephen.

    Default

    We have seen the before, how about a picture after you have worked on it?

  10. #10
    Join Date: Apr 2019

    Location: Norwich

    Posts: 9
    I'm Cas.

    Default

    IMG_4901.jpg There you go... not absolutely perfect but it's a great improvement and it's got character... and works

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