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 Post subject: Victrola Speed Control Issue
PostPosted: Wed Jun 13, 2018 12:02 am 
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Victor II
Joined: Wed Mar 18, 2015 11:54 pm
Posts: 211
I'm trying to calibrate the speed to 78 RPM on a Victrola VV-90 I picked up needing some TLC. However, I can only get it to stay steady at around 75-76 RPM when turning the speed regulator screw to the right almost all of the way down. Turning the screw just a little (quarter-half of a turn) makes the RPM rise quickly to 100+. I also notice that when I turn the crank while it's at 75-76 RPM the RPM rise to 80-85 RPM for a couple of seconds and then settles back down to 75-76 RPM. The Victrola had two broken governor springs but I found the two fly weights in the cabinet. I only replaced the two broken springs, not the good one. Is the governor so sensitive that I need to replace the third spring to have matching springs and everything weighing the same? Could this be causing the speed problem? I would appreciate any help with this issue.

Thanks,

AR


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 Post subject: Re: Victrola Speed Control Issue
PostPosted: Wed Jun 13, 2018 2:04 am 
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Victor V
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Joined: Tue Dec 14, 2010 1:17 am
Posts: 2852
Location: Where there's "hamburger ALL OVER the highway"...
As a general rule, whenever you have to replace governor springs or weights, it's best to replace all of them at once. That way, you have a matching set.

Bill


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 Post subject: Re: Victrola Speed Control Issue
PostPosted: Wed Jun 13, 2018 10:41 am 
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Victor V
Joined: Mon Oct 03, 2011 7:54 pm
Posts: 2299
I had this problem recently on a machine I bought from someone who was afraid to wind the machine fully. I fully wound and unwound the machine 10 or so times, and put light oil on the governor bearings and pad and that greatly increased the speed stability. Fully cleaning and relubricating your motor will definitely help as well.


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 Post subject: Re: Victrola Speed Control Issue
PostPosted: Sun Jun 24, 2018 8:43 pm 
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Victor II
Joined: Wed Mar 18, 2015 11:54 pm
Posts: 211
I replaced all three springs with a matching set and still had the same issue. But our forum member, Walt S., was able to fix my problem. According to Walt, "I have seen this a few times and have solved the issue with different springs...there is a difference in the size and the way that the brass was machined on some governors. As far as I am aware this only seems to be something seen in later (say, after 1915 or 1916) Victor two, three and four spring motors that use 1-1/14" springs. I have seen this occur now four times including yours. But in each instance, the alternate spring set always works."

The new set of springs that Walt made fixed the problem. Once again Walt, thanks for the help...I appreciate it!!

AR


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