Re: Collaro A27 motor repair advice please
Posted: Sat Jul 22, 2023 9:09 pm
If it is too short, then a replacement may be the best choice.
https://forum.talkingmachine.info/
Yes, a very good point. I don't really want to replace the original but it is broken with terrible tracking so maybe there is a silver lining in that cloud.Curt A wrote: Sat Jul 22, 2023 9:09 pm If it is too short, then a replacement may be the best choice.
Thank you VERY much Oedipus. What you describe is the turntable which is with my Collaro motor - so I am now reasonably sure that it is original !Oedipus wrote: Sun Jul 30, 2023 9:36 am Yes, motors came with a set of accessories, but the gramophone manufacturer would have had some choice, particularly in the type and colour of turntable mat. Collaro turntables in the 1920s were usually of cast iron, full of holes like a string vest, with a nickel plate steel 'tyre' that clamped the mat in place. At some point, don't know exactly when, probably about 1930, they changed to an all-steel hollow rim turntable just like Garrard.
Yes it definitely worked and is holding up well. The whisk isn’t the best solution as it’s quite short. Coat hanger can be a bit too thick for some motors, but it’ll work. The force on that spring when it’s fully wound must be immense!poodling around wrote: Tue Jul 18, 2023 1:15 pmThank you leels1 !leels1 wrote: Tue Jul 18, 2023 10:56 am Glad you sorted the spring!
Unfortunately with mine there wasn’t enough left to reuse the old one. It kept snapping and slipping.
I am sorry that you could not re-use your non-return spring. You mentioned earlier in this thread that you may try to make a new one from a whisk or a coat hanger. I hope that was successful. By coincidence I was out and about a week or so ago and came across some wire coat hangers. So I bought them thinking that they may have a gramophone use one day !
I am careful not to wind this gramophone up too much incidentally, in case the now shorter non-return spring slips or breaks . I guess the more the main-spring is wound the more the non-return spring has to deal with more tension ?