Moby

Re: LM301 substitution
« Reply #20 on: December 03, 2020, 01:39:33 PM »
Hi all

I have consoles that use the 301 which is now obsolete in dip8 package (soic seem to stay alive?)
The LM301 is used in a specific way I don't remember to see elsewhere, where the input stage is bypassed and a discrete differential pair is used in place and sent to the output stage via comp/bal pin.

I'm not expert at all in opamp topology/design and like to know what other of opamp is able to be used like that.

Here the idea of discussion is not to replace for "better" opamp, I have no complain about the sound of my 169 and 289, but anticipate a possible substitution when my spare spent out or when NOS stock get completely overpriced...

Best
Zam
LM301 DIP8, how many pieces you need? I think I still can buy it locally.
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com


robovox

Re: LM301 substitution
« Reply #21 on: December 03, 2020, 11:04:29 PM »
BGMicro shows stock on these at a reasonable price.

https://www.bgmicro.com/ICSLM301.aspx
I have an electric grandpa bed that talks to me while I sleep.
                                                              --Dean Venture

Re: LM301 substitution
« Reply #22 on: December 04, 2020, 06:02:14 AM »
Hello

LM301 DIP8, how many pieces you need? I think I still can buy it locally.

BGMicro shows stock on these at a reasonable price.

https://www.bgmicro.com/ICSLM301.aspx

Thanks to both of you for the help.
I should have enough spare for the moment.

Best
Zam

diggy fresh

Re: LM301 substitution
« Reply #23 on: December 24, 2020, 03:08:48 PM »
I'm not good enough to contribute too much but i think the Ward beck m460 and m470 preamps uses the lm301 in a similar way, bypassing some of the limitations of the internal stuff with discrete parts around it. I have dug a little bit around to find a way to upgrade the lm301 because of the bad reputation but haven't come to any conclusive info yet.  I'm very interested to know if anybody has an idea or tried something.
English is my second language, apologies

Autodidact audio geek, constantly learning.

Very interested in old technology, i mostly learn from the info you guys share on here, so thanks!


 

Related Topics

  Subject / Started by Replies Last post
4 Replies
1664 Views
Last post August 22, 2006, 11:58:31 PM
by Ptownkid
14 Replies
3600 Views
Last post December 21, 2006, 05:50:37 PM
by Barish
42 Replies
11817 Views
Last post April 03, 2020, 04:25:43 PM
by pstcho
10 Replies
10704 Views
Last post February 02, 2011, 02:42:06 PM
by dandeurloo