Crown (Amcron) IC 150 question

[thermal runaway]

My Crown IC150 pre-amp has developed an intermittent chip on the left channel. Problem is the chip number is SL 60113 by National Semiconductors and I can't find a reference to this anywhere.
Could anyone suggest an equivalent or upgrade etc ? I'm based in the UK.

Thanks.

 

[bosedtobosed]

think iT might be a LM301

 

[thermal runaway]

That was one of the types used , I would like to know what this NS one is though.

 

[jackinnj]

Crown keeps the manuals archived on their website -- IC130 and 230 are LF356H, IC's in the phono section are. # 100,200 are LM301.

You can replace these with LM4562 -- and the change will be pretty astounding

EDIT: Use the LME49710 -- it's the single --

I described an IC150A Pooge here:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=96376&perpage=25&highlight=&pagenumber=2

 

[thermal runaway]

Excellent , thankyou !! Now you've done it though , having read about your mod's I'll start fiddling instead of listening !!