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Old 28th November 2008, 05:47 PM   #11
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No problems when playing records.
When playing, the switch on, by-pass the leaking 10nF cap.

Any one, give me proposal of substitute for bouth caps?
And perhaps the resistor should be exchanged to?
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Old 28th November 2008, 08:22 PM   #12
cbdb is offline cbdb  Canada
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Just try replacing the 10 nf cap. If this turntable is older that cap has been on 230v 24/7 for how many years?
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Old 28th November 2008, 08:53 PM   #13
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This player must be some 45 - 50 years old.
Here we have some quality piece to talk about.

But wat type of caps are best useful (modern caps) in these places, as we can see in my schematic?

Or is there a way to make the motorsupply even better, without change of the motor?
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Old 28th November 2008, 09:14 PM   #14
Electrons are yellow and more is better!
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Quote:
Originally posted by Ragnwald
This player must be some 45 - 50 years old.
Really? I should guess it's from the 70's.
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Old 28th November 2008, 09:41 PM   #15
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1965 to be exact.
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Old 29th November 2008, 08:20 AM   #16
Electrons are yellow and more is better!
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I looks not very 60's but it looks real nice to be so old.
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Old 29th November 2008, 09:23 AM   #17
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If that schematic of yours is correct - with the 10 nF across the switch- the motor WILL hum. 10 nF at 50 Hz is appx. 6.5 kohm - in series with the other 5.6 k. That cap is prob'ly OK.
I cannot see that cap in your photos either....
A cap across the switch in this fashion is typical for a noise killer, prob'ly should be an X1 type filter cap, but in this circuit it causes more trouble than it cures....did you put it there, or is it original?
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Old 29th November 2008, 10:09 AM   #18
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No, i´ve done nothing to the electrical part.
10nF is the little yellow one in the picture.

X and Y caps, are they not just made for this purpose?
Are there any drawbacks to use them?
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Old 29th November 2008, 10:35 AM   #19
Electrons are yellow and more is better!
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No, none what so ever. (the last question)
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Old 29th November 2008, 10:41 AM   #20
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X and Y caps are indeed for this purpose......
It's just that 10 nF in series with the 5,6k, or more correctly Xc of 6.4k in series with 5.6k......mmmm
Try to get hold of a new 10nF X-cap - or any other 10 nF 400V for a test....
I just remebered I changed one on my wife's Husquarna sewing machine- gone bad and connected across the pedal. When plugged in, the thing started on ints own after some 10 mins!
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