[Phono-L] Amberola 30 erratic speed
Rich
rich-mail at octoxol.com
Mon Sep 1 10:56:07 PDT 2008
Replace the felt pads that bear against the governor disk and skip the
oil. Use real felt, F-1 or F-2 grade.
Ron L'Herault wrote:
> OK, gang, it is time to tap into the lists' wisdom. I'm working on an
> Amberola 30. The hook came unsoldered and the reproducer needed a rebuild.
> Those two easy repairs (the spring was in the case)completed, I tested the
> phonograph and found that the speed is a bit erratic. It will sound nice,
> then slow just a bit then return to speed for a while only to slow again.
> The carriage moves easily and the horn bobbles and rotates as it should.
> The governor is lubricated and the pad has been oiled. There is no evidence
> of crud or damage to the governor disk. There were a few teeth on the large
> hear that had a bit of damage but a bit of judicious filing has cured the
> noise the damage created, and besides, the speed variation is more random
> than the cycle of the gear noise. I'm thinking that the mainspring may need
> to be removed, cleaned and re-lubricated but I thought I might see if there
> is anything else I missed before tearing it apart.
>
> Thanks,
>
> Ron L
>
>
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