wurlitzer 1100 78 rpm

[phil]

hello from France


I have a little problem with a wurlitzer 1100

when the cobra cell lands on the disc for one to three seconds, the disc spins less quickly and distorts

after reading and correct

sorry for my english i translate with a translator
Phil

[Ron Rich]

Hi Phil,
There is nothing wrong with your "English" -- It's the translator that has not yet learned good English !
I have seen this happen several times. One of the following has always been the cause

1. Lack of oil in the TT area.
2. The Turn Table (TT)or record tray has lost all of it's "flocking" ( "fuzzy hair"?) and your record is just slipping.
3. The clutch drive pin (nail) is not fully engaging the TT drive spring.
Ron Rich

[phil]

Hi Ron
Thank you for the quick reply


it's not a lack of oil (the bearings have been redone)

the flocking of the plate is new and there are record spacers

I have to look at the nail


but I think I found ...

in France the voltage is 220 / 240volts, I replaced the transformer which delivered only 110v with a 115v model

and obviously the problem is gone

there are of course gears to transform the 60hz into 50hz

Phil

[Ron Rich]

Hi Phil,
I don't think going from 110 to 115 would make that difference-- if you still have the old transformer and have the time--try switching them back. I think the oil may have just "worked into where it was dry"-- ?? Ron Rich

[Startgroove]

So many things can cause your problem, and not enough detail in the symptoms. I'll suggest a few more obvious ideas here.
First, Rich is right, 110 volts on a 115 motor will cause only a slight loss of torque, probably not enough to cause your problem.
The first thing to check is the Turntable Drive Clutch. Be sure it engages the Turntable Drive Gear pin slightly before the turntable stops rising. There are a couple of things that can stop it from engaging properly. If it is set too low, then it won't engage the pin on the Turntable Drive Gear early enough. If that is the problem, it can be adjusted, don't adjust it too high, as that will prevent the turntable from rising far enough to the top, and could bend some parts. There is about 6 mm of adjustment range. Another thing that would prevent it from engaging properly is if the Turntable Lift Arm is twisted. That will prevent the proper engagement of the Turntable Drive Gear pin. This one is a little more difficult to repair, it calls for removing the Lift Arm and replacing it or straightening it.
If the Turntable Drive Gear is engaging properly, then check the spring/pin that is wrapped around the Turntable Drive Clutch Assembly. If it slips too easily, the turntable will not come up to speed quick enough. Replacing it with a good one is the solution.
There are other causes for this problem, but more detail would be needed to diagnose those.
By the way, if the turntable gears are 60 Hz gears, your turntable speed will only be 65 rpm. If that is the case, it is easy to replace the gears with 50 Hz gears. I think there is a set on Ebay at this time.
Cheers, Russie

[phil]

Good morning all
actually the excess voltage was not enough (for my defense, the juke is at a friend's house and it was he who had added the voltage)
this afternoon, I looked again and with an adjustment higher on the shaft of the plate, the nail takes the gear faster and removes this problem

"oula I'm not sure you understood my answer !!!"
but startgrove was right

for the frequency, on this jukebox the pinions we were changed
but now I don't do that anymore, I keep the original pinions and install a frequency converter

Phil