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Old 1st August 2007, 11:21 PM   #1
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Question tweaking classic Linn LK1 & LK2 / LK280

Hello Folks !!


I'm doing the next couple of tweaks to my old Linn LK1 preamp
and the LK2 poweramps right now.

Some years ago I several caps in the RIAA section, most ps and
decoupling capacitors.

Parts used are Wima FKP3, Elna silmic, cerafine, BC 051 etc..

Now I will try Epcos Sikorel an Mundorf M-Lytic HC for the power amp
(ps is separate).

Biggest problem:

Coupling caps in the signal path even in the MC preamp are several tantal caps of small size.
Most of them are 100 + 22 µF parallel.

How to replace them? BG, Oscon, silmic ??
There's no space for FKPs..

Another question: Does anybody have more information about tweaking old Linn gear ??
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Old 8th August 2007, 10:53 AM   #2
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anyone??
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Old 16th September 2007, 04:56 PM   #3
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push !!
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Old 16th September 2007, 05:42 PM   #4
Dag is offline Dag  Sweden
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Since the tantal caps now are very old the best is probably to replace them with new tantal caps. I did that with good results.

I also replaced the decoupling capacitors with Elna RJH with VERY good result!!

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Old 16th September 2007, 06:27 PM   #5
Quattor is offline Quattor  France
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Anyone with the parts list for these two?! Thanks!
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Old 17th September 2007, 02:04 PM   #6
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Hi there,


got parts list of LK2/LK280, but still looking
for parts list of LK1 !!

Email me for LK2 list if You need it.
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Old 17th September 2007, 05:40 PM   #7
Quattor is offline Quattor  France
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@ ticktock

Please send me parts list that you have. Thank you very much!

E-mail: lenkin_tata@yahoo.co.uk
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Old 18th September 2007, 04:35 PM   #8
kepa1 is offline kepa1  France
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Hello,

I gave it a go and changed my 1988 LK280 power capacitors last year. I took the very same BHC reference for that (save the terminal screw on the newer ones). Unfortunately this led to problems : no more protection on start/stop, no more power LED.
And I'm not sure the sound improved at all!

Well, never mind this amp still works great.

If I were to continue on tweaking I would change the input cap (which is an Evox one if I remember) by the best cap possible, PIO?

Oh and I do have several documents on the LK1 + 2 including boms, schematics and service manuals that I'll be glad to share. It's very complicated design with CMS.

Alain
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Old 18th September 2007, 06:20 PM   #9
Quattor is offline Quattor  France
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Please send it to me via:

lenkin_tata@yahoo.co.uk

Thank you very much.
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Old 24th November 2007, 01:46 AM   #10
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Lads,
Could i have all the Docs. on the LK1 and 2 please.
I want to make PSU's
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