MS Audiotron mixer restoration.
« on: June 09, 2015, 01:48:17 PM »
I bought an old MS Audiotron Multimix mixer and now I plan to restore it.


Re: MS Audiotron mixer restoration.
« Reply #1 on: June 21, 2015, 06:13:36 AM »

That is a Swedish theatre console from the 1980s. Seems to be a late version equipped with "light" input modules.

I have studied the documentation, but that was very long time ago. If you can post photos/scans of the schematic diagrams, I think I can help you. The design is quite straightforward, but there are some odd things and need for modifications if you are going to use it for music recording/mixing.

theaterguy

Re: MS Audiotron mixer restoration.
« Reply #2 on: June 21, 2015, 12:58:57 PM »

That is a Swedish theatre console from the 1980s. Seems to be a late version equipped with "light" input modules.


No no, it's a Finnish console.

Re: MS Audiotron mixer restoration.
« Reply #3 on: June 21, 2015, 04:23:33 PM »

That is a Swedish theatre console from the 1980s. Seems to be a late version equipped with "light" input modules.


No no, it's a Finnish console.

Close enough...

But yes, you are correct.

SoundOfRolf

Re: MS Audiotron mixer restoration.
« Reply #4 on: June 23, 2015, 10:06:57 AM »
But the Swedish theatre in Helsinki Finland used to have one of these I've been told. So you're all right! :)

Re: MS Audiotron mixer restoration.
« Reply #5 on: November 29, 2015, 04:36:06 AM »
hope the project is going well!

has anyone  more info about these "light version modules"? they seem to be without line input transformer which is included in the later(?) models.  is that lundahl LL4901 on the mic input?

btw i might have some modules to trade if someone needs any. no IMC/IMQinput modules though but faders, routing and some output stuff etc.

i am also looking for the original power supply if anyone has a spare one floating around. a broken one would do, mainly wanting this for original looks.

could also use one IMC/IMQ to complete my puzzle.

Re: MS Audiotron mixer restoration.
« Reply #6 on: November 29, 2015, 01:24:37 PM »
I have one too! 8 IMC mic channels, 4 IPF stereo line/phono channels and 8 buses.
This console has been stored away for about 10 years so it needs some maintenance, mainly cleaning dirty pots and switches, to get it running again.
I'm also currently building a power supply which can supply the required 6 volts for the LEDs in the PMM meter modules. At the moment I'm powering the console with a slightly modified external PSU from a Midas Venice mixer.


Re: MS Audiotron mixer restoration.
« Reply #7 on: December 01, 2015, 11:03:54 AM »
cool! i have understood that those led meters draw quite a lot of current.

my layout will be somewhat similar though my mixer frame has only 20 slots if i remember correctly.

IMQ/IMC for inputs, OSC for aux sends, IPF for stereo aux returns and OSD/OFS for bus outs. OMR main outs probably.

first i wanted to try and get MCA (computer controlled version) together, but haven't found enough modules.

also some other ideas in the back burner.
« Last Edit: December 01, 2015, 11:09:58 AM by MeteorMan »

Re: MS Audiotron mixer restoration.
« Reply #8 on: January 06, 2018, 11:17:13 AM »
I've looked at some old MS Audiotron (or Kajasound, I can't remember) schematics someone posted on the internet but they've been deleted.

Jannee

Re: MS Audiotron mixer restoration.
« Reply #9 on: January 16, 2018, 07:01:59 PM »
Helloo!

We have a MS Multimix group in facebook. Join in! Lot’s of info and history there.

Cheers, Janne