Re: Favourite Bulk Capacaitors
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Lee Majors
Member
Last Activity: 11-09-2023, 06:38 AM
Joined: 10-19-2023
Location: Brisbane QLD
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Re: Favourite Bulk Capacaitors
Both the Pana FR and Epcos have extremely good specs, FR 105° 10,000hrs great ripple and low ESR. The same for Epcos 125° 7000hrs great ripple and low ESR. They are pretty much on par.
I will look into this Brand epcos a little more as I dont know much about them. The Pana FR Vs FC seem to have a lot of debate, but the FR series definitely better specd, quite impressive I have to say!Leave a comment:
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Favourite Bulk Capacaitors
Hi Guys,
Just repaired a Turntable for audio HiFi, The Panasonic FC series capacitor is 3mm to tall. What are your favorite Brand / Series for Bulk smoothing capacitors (after bridge rectifier)...?
Your favorites? -
Re: Snubber Capacitor Vs Class X2 Capacitor
Oh Ok, That is good to know. I guess the bulk capacitor after the bridge rectifier is doing all the ripple smoothing and noise suppression. Thanks, I'm learning some good stuff!Leave a comment:
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Re: Snubber Capacitor Vs Class X2 Capacitor
Oh really, ok great! Well, it's definitely a very big polypropylene hehe. CORNELL DUBILIER 940C20S47K-F. 630 VAC 2kV VDC, dv /dt 1.712kV/µs, Peak current 80A.
I assume this will suppress noise, EMI etc?Leave a comment:
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Snubber Capacitor Vs Class X2 Capacitor
Is a snubbing capacitor fine to use in place of an X2 suppression safety? The only real difference I see is that the dV/dt is around 3 times higher than the recommended Class X2. Is this a positive or negative issue in this turntable audio device? See C601... -
Re: Potentially Dangerous Vintage Capacitor?
Yes just had a look at those RIFA caps. Like wow! They totally explode and shatter into 1000 pieces. Crazy!
So I have 2 service manuals and 1 lists the cap as oil and paper, to which I tend to believe. I have seen many others almost identical and of the same color caps from vintage Japanese stuff from the 80's. The supplement manual says polyester. The latter polyester ones I know well and they look much different. They are a brown Radial cap shaped like kidney bean.
The ones in mine have like a plastic cover/sleeve...Last edited by Lee Majors; 10-22-2023, 06:52 PM.Leave a comment:
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Re: Potentially Dangerous Vintage Capacitor?
I saw EEVBLOG guy talking about how some caps can take on moisture and fail. Does anyone believe this, and if so wouldn't it be more of a possibility with this damaged insulation cap? hmmmmLeave a comment:
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Re: Potentially Dangerous Vintage Capacitor?
You can see here...Leave a comment:
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Re: Potentially Dangerous Vintage Capacitor?
Ceramic hmmm, Ok I will have to investigate this. A new rabbit hole to actively pursue. However, I'm sure the Japanese models didn't even have a fuse. The Australian market models have the glass fuse as you can see.
As for the phono cables, they are soldered directly to a PCB board within the tonearm base, alongside the tone-arm wires coming directly from the cart connection (service socket) the RCA's go through a strain relief which is fixed into an aluminum base plate that is screwed into the main chassis.
...Leave a comment:
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Re: Potentially Dangerous Vintage Capacitor?
Petehall, Now that I look again, you might be right. The original had far more wraps around the terminal..... Solder breaks loose and yeah, I am Djing with my hair on fire! Literally :-/Leave a comment:
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Re: Potentially Dangerous Vintage Capacitor?
Hi Redwire
Thanks for your knowledge. So, ok great so it's like a suppression safety capacitor, that is very helpful. I did see this category of capacitors when looking for a replacement on elements14.
I would just like to add that the Technics 1200 mk2 is quite unusual for a vintage turntable as the signal path is completely isolated from the main board or any other electronics. The tonearm from the stylus tip to the RCA outs are completely decoupled. So I assume it is more of a safety suppression cap and...Leave a comment:
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Potentially Dangerous Vintage Capacitor?
A technician (with his soldering iron) hit the original Oil & Paper capacitor in the power supply of my Technics 1200 mk2 Turntable. It looks like a snubbing circuit capacitor/noise suppression? rated 0.047uF 450V, Orange Panasonic most likely from the 80's.
His response was it is just cosmetic and there is nothing to worry about. However, I'm not filled with confidence as it is in the AC power section....
Can anyone help me out and can confirm its safe? He hasn't tested it, so I'm not sure how he would 100% know. I am nervous it could fail at some stage.... -
Re: New Members - please post your introductions here
Name: Lee Majors
6 million ways to do everything. Love my HiFi, sitting back with a glass of my favorite beverage and listening to a record album "Records/Vinyl" and letting the sound of analog wash over me. Love to tinker and twiddle on turntables.
On a journey in electronics, and particularly capacitors. It has been a rewarding journey
Live in Australia with my wife and local native birds that sing to us in the morning.Leave a comment:
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