tweaking classic Linn LK1 & LK2 / LK280

ticktock · 1st August 2007, 11:21 PM

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 ??

ticktock · 8th August 2007, 10:53 AM

anyone??

ticktock · 16th September 2007, 04:56 PM

push !!

Dag · 16th September 2007, 05:42 PM

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!!

Quattor · 16th September 2007, 06:27 PM

Anyone with the parts list for these two?! Thanks!

ticktock · 17th September 2007, 02:04 PM

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.

Quattor · 17th September 2007, 05:40 PM

@ ticktock

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

E-mail: lenkin_tata@yahoo.co.uk

kepa1 · 18th September 2007, 04:35 PM

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

Quattor · 18th September 2007, 06:20 PM

Please send it to me via:

lenkin_tata@yahoo.co.uk

Thank you very much.

KIERANPHILLIPS · 24th November 2007, 01:46 AM

Lads,
Could i have all the Docs. on the LK1 and 2 please.
I want to make PSU's

1st August 2007, 11:21 PM	#1
ticktock diyAudio Member Join Date: Dec 2006	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 ??

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tweaking B&W DM 602 s2	zverina	Multi-Way	24	4th May 2006 12:12 PM
what CD buy for tweaking?	LennyK	Digital Source	0	29th July 2005 08:50 AM
Help with car amp tweaking	sq_guy	Car Audio	15	7th May 2005 04:14 AM
DIY Amp Tweaking	choatie88	Solid State	4	15th September 2004 10:16 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

8th August 2007, 10:53 AM	#2
ticktock diyAudio Member Join Date: Dec 2006	anyone??

16th September 2007, 04:56 PM	#3
ticktock diyAudio Member Join Date: Dec 2006	push !!

16th September 2007, 05:42 PM	#4
Dag diyAudio Member Join Date: Feb 2005 Location: Goteborg	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!!

16th September 2007, 06:27 PM	#5
Quattor diyAudio Member Join Date: May 2003 Location: Paris	Anyone with the parts list for these two?! Thanks!

17th September 2007, 02:04 PM	#6
ticktock diyAudio Member Join Date: Dec 2006	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.

17th September 2007, 05:40 PM	#7
Quattor diyAudio Member Join Date: May 2003 Location: Paris	@ ticktock Please send me parts list that you have. Thank you very much! E-mail: lenkin_tata@yahoo.co.uk

18th September 2007, 04:35 PM	#8
kepa1 diyAudio Member Join Date: Apr 2004 Location: Paris	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

18th September 2007, 06:20 PM	#9
Quattor diyAudio Member Join Date: May 2003 Location: Paris	Please send it to me via: lenkin_tata@yahoo.co.uk Thank you very much.

24th November 2007, 01:46 AM	#10
KIERANPHILLIPS diyAudio Member Join Date: Jul 2001 Location: CHESHIRE (UK)	Lads, Could i have all the Docs. on the LK1 and 2 please. I want to make PSU's

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)