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Post by westfalia on May 22, 2019 17:56:22 GMT -5
I have a problem with model B Edison. It has 4min reproducer, but the needle will set too down. The cylinder is blue amberol with cast support. Are older cylinders thinner in order to the groove be right level for the needle? Or is my reproducer unsuitable for this model?
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Post by lucius1958 on May 22, 2019 20:44:10 GMT -5
What model reproducer is it? H or Diamond B? And what do you mean by "too down"? Is the other end of the stylus bar hitting the cylinder? If that is the case, most likely the diaphragm link is too long.
Pictures would help.
BillS
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Post by westfalia on May 22, 2019 21:17:41 GMT -5
   Sorry for the photos, my camera is not the best one. But the middle photo shows the problem, the needle almost touch to the groove in upper position. If I leave the needle down, the record doesn't rotate since the needle weight is so high Edit: I don't know the model of the reproducer, hopefully it can be figured out from photos |
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Post by lucius1958 on May 23, 2019 23:58:46 GMT -5
OK: you have a Diamond B reproducer.
There are a number of reasons why your machine might be bogging down:
.Has the motor been serviced? Century-old oil and grease can rob a motor of its power; and even mainsprings can grow weak with age. Additionally, lack of lubrication in bearings and shafts can add drag (sewing machine oil is helpful in this case).
.Is the belt slipping?
.Is there any stiffness in the mandrel bearing? The pot metal in later Edisons, such as your Fireside, can swell with age, and reduce power.
.Have you checked the half nut? If it is pressing too hard on the feed screw, that can cause the machine to stop.
.Have you checked the reproducer? Has the diaphragm link been replaced? In this case, a too-short link may cause the stylus to sit at the wrong angle. Is the diamond stylus itself worn or chipped? In any case, I would recommend sending the reproducer to an expert such as Wyatt Markus for rebuilding.
Let me know if any of this advice has been helpful.
BillS
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Post by joebftzpk on May 25, 2019 17:55:09 GMT -5
I also have a question similar to this one. On my Edison Standard suitcase model (square-top) the Model C reproducer seems to sit with all its weight down on the cylinder, rather than riding slightly raised with just the jewel riding in the groove. It drags the cylinder down eventually to a stop. I know the spring in those early Standards was pretty weak, but I would think it would make it through one two-minute cylinder. I've oiled it, cleaned it, etc. My main question is - should the reproducer sit right down on the cylinder or ride slightly above it?
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Post by lucius1958 on May 25, 2019 21:14:50 GMT -5
I also have a question similar to this one. On my Edison Standard suitcase model (square-top) the Model C reproducer seems to sit with all its weight down on the cylinder, rather than riding slightly raised with just the jewel riding in the groove. It drags the cylinder down eventually to a stop. I know the spring in those early Standards was pretty weak, but I would think it would make it through one two-minute cylinder. I've oiled it, cleaned it, etc. My main question is - should the reproducer sit right down on the cylinder or ride slightly above it? Could be a half nut problem, as mentioned before; or some problem with the carriage. Is there a little roller underneath the lift lever? If it is absent, it might cause the carriage to ride too low. BillS |
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Post by westfalia on May 27, 2019 13:20:21 GMT -5
I agree that my Edison needs oil, absolutely. But the main problem is that the roller is missing... I have to figure out this one. Thanks BillS
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