Well, I first posted this thread in the wrong forum, so I guess I'm not starting out too good on DIYaudio. Anyway, I'm trying to get this TD-150-AB turntable in running condition, and I have two problems. One is that the motor shaft is bent, giving the pulley a serious wobble. Someone must have tried to remove the pulley at some point, damaging the shaft. Does anyone know how I can remove the pulley, and then straighten the shaft?If that's not possible,can I get a replacement shaft? This little table also needs a headshell. Other than these two issues, the turntable is cosmetically very nice, so hopefully I can fix these two problems, and see how it sounds. Any help will be appreciated. Thanks.
The pulley is held in place with 2 set screws (I think they are 2mm, or maybe 1.5mm). The upper (45RPM) pulley is spring-loaded, you push it down to access the screws. However, there is a clutch under the pulley, and I think the bottom clutch plate is a press fit; I don't think you can remove it. The more likely scenario for the bent shaft is the platter striking the pulley, perhaps during transport.
As for straightening the shaft, I have heard of it being done but it is unlikely to be successful. You just have to slowly and carefully bend the shaft until there is no wobble. Too much force could break the shaft. If you find someone with a dead motor you could pull out the rotor assembly (the coils are static) and replace it with that from the dead one. The motors are riveted together, so reassembly is difficult.
Headshells show up on eBay from time to time; they tend to be a little expensive. You might want to consider just replacing the arm. If you do find a headshell, make sure it is the right one. See NO_NO_1 .
As for straightening the shaft, I have heard of it being done but it is unlikely to be successful. You just have to slowly and carefully bend the shaft until there is no wobble. Too much force could break the shaft. If you find someone with a dead motor you could pull out the rotor assembly (the coils are static) and replace it with that from the dead one. The motors are riveted together, so reassembly is difficult.
Headshells show up on eBay from time to time; they tend to be a little expensive. You might want to consider just replacing the arm. If you do find a headshell, make sure it is the right one. See NO_NO_1 .
Couldn't find any setscrews--I think the pulley is pressed on at the factory. Maybe we're talking about two different turntables; mine is a mid-60's TD-150-AB, not a late 60's MKII. I think you're right about the shaft being difficult to straighten, so maybe this turntable is more a parts machine than anything, which bums me out. Thanks for your input on this, nezbleu.
I confess I am more familiar with the TD-160 ("more familiar" meaning "only familiar") but I am pretty certain that the pulleys could be removed, for 50Hz/60Hz change. You might check on vinylengine.com and theanalogdept.com for more expertise.
It is a press fit. I would try to hold the shaft with very thin pliers and pull the pulley off. Heating it up a bit will also help.
It is a pretty nice turntable - good platter and bearing and reasonable suspension. The plinth is horrible but that's easy to change. The original arm obviously has to go as well.
Straightening the shaft seems impossible, so it's either a new rotor, or a new motor. A dc motor is also a possibility.
In a nice plinth the 150 would give a pre-Valhalla LP12 a good run for the money.
I think you can press the shaft out of the rotor after removing the rotor from the motor.
Then you press a new shaft.
I have made that on a Philips synchronous motor.
The motor on the TD-150 don't have a clutch.
Then you press a new shaft.
I have made that on a Philips synchronous motor.
The motor on the TD-150 don't have a clutch.
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