Capacitors for Linn Linto phono stage Recap


Hi
I’m considering a Recap for my Linn Linto phono stage.
Attached is a screenshot of the main PCB.

1. Other than the 14 Capacitors in the attached picture, are there any other Capacitors that need changing ?

2. I read in the various forums, various preferences of Capacitors types that are worthy. Is it that different types are good for different phono stages ?
Which brand/type regardless of budget will give the best performance ?

3. Which internet shop is reliable and sells only original parts ?

 

triskadecaphobic

Showing 11 responses by triskadecaphobic

I counted 16 capacitors. Where in the picture are the additional 24 smd electrolytic capacitors? 

Hi,
I made a preliminary list of all the caps.
Please see questions below…

Power supply:
1) 4 X Rubicon 105c 200v 220uF 9030aw
2) 6 X Longlife RSH 105c 35v 100uF 9940
3) 1 X Yellow+ Black ?? (see picture. Are these Non-Polarized Capacitors ? do they need replacement too ?)
4) 2 X Red ones ?? (see picture. Are these Non-Polarized Capacitors ? do they need replacement too ?)


Main PCB:
5) 14 X Longlife RSH 105c 35v 100 uF 9940

6) 2 X the following. what are these values ? doesn’t fit the notation shown in a post above  ?

h4
2.2
50v

7) 22 X  the following.  what are these values ? doesn’t fit the notation shown in a post above  ?
J1
22
50v


https://drive.google.com/file/d/1RQzxSNFjs_zfyOu5ffEIckL6mL3bTPbj/view?usp=sharing
https://drive.google.com/file/d/1XPWpMZOw5vClBavFDASyOVj1sHVLcoHL/view?usp=sharing
https://drive.google.com/file/d/1w0s4WOyRXBQrobobaWhNQD6V_Lryx_kb/view?usp=sharing
https://drive.google.com/file/d/1YxzJ0gX_B-MxyhmUq1iw0EXYbAjIjNcW/view?usp=sharing

https://drive.google.com/file/d/1q4r6NbcN6QGeKMvlWF8IfhWmEaoRBVlW/view?usp=sharing

By the way imhififan,
I have a problem with my Linto : It stops working after 30 minutes of work. When it gets cold it works again for 30 minutes. So I guess it wouldn’t hurt to replace the thermistor as well, to be on the safe side, right ?

5) SG230 Thermistor
https://www.digikey.co.il/en/products/result?s=N4IgTCBcDaIM4HMwGYAMIC6BfIA

 

Thanks imhififan.
So we have the shopping list of 48 caps below…
I added a link for each cap type with search results. I would appreciate it if you can recommend or link to any specific one that you prefer (if there is one in my search at all. If there isn’t please link to one…).
Of course they need to resemble in form to the ones I have in order to fit the Linn Linto PCB…

1) 4 X Rubicon 105c 200v 220uF 9030aw
https://il.farnell.com/c/passive-components/capacitors/aluminium-electrolytic-capacitors?st=105c+200v+220uf

2) 20 X Longlife RSH 105c 35v 100uF 9940

https://il.farnell.com/c/passive-components/capacitors/aluminium-electrolytic-capacitors/leaded-aluminium-electrolytic-capacitors?st=rsh%2B105c%2B35v%2B100uf

3) 2 X h4

            2.2
            50v
https://il.farnell.com/w/c/passive-components/capacitors/aluminium-electrolytic-capacitors?st=22%2050v%20smd&gs=true


4) 22 X J1
              22
              50v
https://il.farnell.com/w/c/passive-components/capacitors/aluminium-electrolytic-capacitors?st=22%2050v%20smd&gs=true

imhififan,

I made a final list with purchase links and (99%) matching dimensions. Please approve it :-)

1) 4 X Rubycon 105c 200v 220uF 9030aw:
The original caps are MXR series which are no longer available and had a lead gap of 10mm
https://pdf1.alldatasheet.com/datasheet-pdf/view/145362/RUBYCON/MXR.html
This one is actually much better rated and has a narrower leads gap of 7.5mm (non issue in my opinion)
https://www.digikey.co.il/en/products/detail/rubycon/200TXW220MEFR18X25/11312650
12000 hrs at 105c
Leads gap in spec : 7.5mm


2) 20 X Longlife RSH 105c 35v 100uF 9940
https://www.digikey.co.il/en/products/detail/nichicon/UPX1V101MPD1TD/4321159
20000 Hrs @ 105°C
Leads gap in spec : 5mm


3) 2 X h4
2.2
50v
https://www.digikey.co.il/en/products/detail/vishay-beyschlag-draloric-bc-components/MAL215371228E3/5635587?s=N4IgTCBcDaILIEEAyYCMBWAzAdlWMAHAKKYgC6AvkA
2000 Hrs @ 105°C
Dia (4.00mm)
Height (5.30mm)


4) 22 X J1
22
50v
4000 Hrs @ 125°C
https://www.digikey.co.il/en/products/detail/panasonic-electronic-components/EEH-ZC1H220P/3088067?s=N4IgTCBcDaIKJwBIC0DCBGRYwAYAKIAugL5A
Dia (6.30mm)
Height (6.10mm)


5) SG230 Thermistor
https://www.digikey.co.il/en/products/detail/ametherm/SG230/4862363

As for Tantalum SMD caps, they only come in box shape and I wasn’t able to find them in the cylinder shape I need.

"IMO, if you want those radial capacitors sat nicely on the PCB, lead spacing is important, and its diameter as well. Newer capacitors for the same rating tend to be smaller, you can choose higher voltage rating capacitors to match the existing space."
I tried to search higher voltages caps but all were too large or too tall. The Large caps in the brilliant PS are very tight and only the one I chose will fit in. I'll carefully improvise a horizontal twist in the leads so they fit in...

"For surface mount capacitors, "land space" is very important! Please measure the existing space to ensure the replacements can sat and soldered properly."
I compared height and diameter of the barrels of the 2 SMD types I want to purchase and they match the dimensions of the 2 SMD types I have in my Linto.

"If size is permitted, you may also consider Nichicon PCX series for its excellent ESR and Ripple Current rating."
Unfortunately these are way bigger than the ones on my Linto

I guess at this point, I should go ahead and order what I listed, right ?

I had a great teacher ;-)
It will take the parts 2 weeks to arrive, I'll assemble them and report the result...

The caps arrived. 

Replacing the regular ones (even though they need double sided sodering) went smooth. The SMD caps are a nightmare to remove. I removed 4 and 2 of them cracked the pcb lines and I had to connect the caps with wires., No matter how gentle I am its a nightmare.

The PCB is so delicate...

The Main PCB is officially dead :-(
The PCB copper stripes under the smd caps pealed like hell. They were manufactured thin as atoms.
The upgraded Linto power supply works fine and tested and is up for sale ...