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The unlikely star-candidate - Linn LK-100

Probably you already know some of this stuff. If not feel free to have a read:


http://www.diyaudio.com/forums/parts/151392-best-electrolytic-capacitors.html

http://www.diyaudio.com/forums/parts/259375-panasonic-fc-vs-nichicon-gold-preamp-power-supply.html

http://www.diyaudio.com/forums/parts/171907-elna-silmic-ii-elna-cerafine.html

http://www.diyaudio.com/forums/lounge/232600-audio-grade-capacitors.html


You'll easily find the datasheets to compare FC, FM and FR. The newer FR
have superior specs in some points regarding ESR, ripple current and lifespan.
 
ticktock2 said:
Probably you already know some of this stuff. If not feel free to have a read:


http://www.diyaudio.com/forums/parts/151392-best-electrolytic-capacitors.html

http://www.diyaudio.com/forums/parts/259375-panasonic-fc-vs-nichicon-gold-preamp-power-supply.html

http://www.diyaudio.com/forums/parts/171907-elna-silmic-ii-elna-cerafine.html

http://www.diyaudio.com/forums/lounge/232600-audio-grade-capacitors.html


You'll easily find the datasheets to compare FC, FM and FR. The newer FR
have superior specs in some points regarding ESR, ripple current and lifespan.
Click to expand...

Thanks!

:)
 
I have Mundorf CAPS 2x 10.000UF , 100UF 63V Panasonic FC replaced. Some of smaller condensators are to be replaced with Panasonic FR.
i have also with better version of WIMA 470P the C201 , C301 ajusted.

Sounds a lot better , i let run in now.. and think.


Does anyone know where I can find the schedules for the Linn Majik-I (1997)?
I have inthere also the Mundorf M-Lytic Caps 2x 15.000uf and looking to replace all condensators two becouse it old amp and one of them is already leaking

Thanks!
 
will change to Mundofs i orderd today.

C206 + C306 comes same vaulue

C201 + 301 will change to 470P

(also in de Majik-I on c601 c701)
 
I'm enjoying this thread. Nice to see some discussion about modding Linn amps, makes a nice change from Naim.

Lars, I have the Majik-I schematic, send me a PM. Which Mudorf caps are you planning to use in place of the Wimas?

The Mundorf M-Lytic caps are superb, I used them in my Klout with excellent results!
 
I have a schematic!
Sorry for late reaction.

Mundorfs are only bigger values, but would be nice to gave somting better then wima's. I have already best series from the wima's thta coverd. But i open to segestions.

Bigger values on C206 / C207 i will replace maybe by Mundorfs.

M-Lytic caps are really super. I also replace that one in a LINN subwoofer for someone , that had to bad Jamicons in it , one of the caps state is allready with cup on it.

I have made the Majik caps bigger to 2x 15000uf and buffer caps on c320 and C319 a replaced whit a 220Uf that was a big improvemend!
 
ooRexQ8.jpg

1. C201 - the input stage low-pass filter, set to 2.2nF - about 8-10 times the normal values we come across ! no wonder the thing has no highs !!
Change it to 390pF, even 470pF will be fine to restore high frequencies.
Click to expand...

Afther listening differt options a have to dis agree on this point.

I you make smaller dept takes on, but you lose Spatial Sound Dynamics.

You need to use even bigger one to restore that , 2700pF / 2.7nF a round that size wil do more then fine.

I got somthing one the way, that i'm conne try next week. Afther a lot of lissing to match up hight en balance in dynamiks you sould use noting smaller the a 2.0nf.
 
However, the feedback cap is only 122uF - no wonder the LK-100 has no bass
Click to expand...

I dit not change this yet, but if you do sould consider it , sould know condensators on this place sould have a very low Ripple Current.
 
Lars81 said:
I did not change this yet, but if you do should consider it , should know condensators on this place should have a very low Ripple Current.
Click to expand...

Lars81 & others : did you find a satisfactory "final" total (re)configuration / specification, I wonder ?
 
I would also be interested in whether someone at the bias voltage generator has already tried a capacitor (R209 + 210)?
With what knowledge?
 
Sorry for dragging up such on old thread - but the LK100 does looks like a promising candidate for bodgers.

Was there ever an agreed 'best set of mods' ?

BTW - the problem with a pot to set bias is that it can be microphonic - some manufactures uses a pot to find the optimal resistor value(s) then fit a fixed R.
 
ooRexQ8.jpg



TBH not quite sure how D210/R216 and D211/R222 work - I guess the diodes limit the voltage drop across the resistors which stop the pre-driver Q210-Q212 etc being shut off ...

The back to back diodes on the inputs are interesting - maybe this aids start-up as the two inputs can't be that different.

... your thoughts would be appreciated.
 
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