Vintage Synth Repair

Hi!!!

I think it is high time to repair a couple of issues regarding my Polymoog keyboard and my main problem is that a couple of Cs on the keyboard do have only one waveform playing instead of the usual two. According to the good net sources the fault lies most likely in one of the divider ICs, namely MM 5823.  

I have found a couple of places in the net where they have been obtainable in the past, but haven�t found any recent info.

So please could anyone here suggest a good place to find one (or a few) nowadays???  Or if you have one for sale, just let me know...

thanks,
Ami

here is another source, cheaper and smaller i think

http://www.flatkeys.co.uk/MM5823N.html

Thanks all for the great help, seems that there is surprisingly many sources for the component nowadays, after all...

What a great forum this is :)

cheers,
Ami