Sorry,
no idea. Maybe you can find a substitute, a counter should be quite a trivial
thing. For example, ARP Omni uses 4520 (which is also CMOS), they should be
readily available. As to why there's only ten of them, I have no clue. Check
again, you should have two more ;:)
Regards,
-----Original Message-----
From: Floyd Smoot [mailto:tubetater@...m]
Sent: 29. October, 2003 01:50
To: crumar@yahoogroups.com
Subject: [crumar] Re: New Owner of an OTR/Orchestrator
you are exactly right,
margus! In my Orchestrator the chip is a 4727, From: Floyd Smoot [mailto:tubetater@...m]
Sent: 29. October, 2003 01:50
To: crumar@yahoogroups.com
Subject: [crumar] Re: New Owner of an OTR/Orchestrator
which i think is a cmos counter. Any idea where I can buy one? I have
struck out so far.
funny thing is I only see 10 of those chips- seems like there should
be 12.
Thanks for your help!
floyd--- In crumar@yahoogroups.com, "Margus Kliimask"
<margus.kliimask@m...> wrote:
> I don't know about OTR keyboard (does this stand for Orchestrator?
which is
> actually Multiman) but in these 'organ-style' keyboards the sound is
> generated by TOS (Top Octave Synthesizer chip which generates all
12 base
> frequencies) which are then divided down by divider chips for lower
octaves,
> one for each note (12 altogether). In my Performer this divider
chip is
> TDA1008, I bet one of your dividers is either dead or
malfunctioning. You
> can try swapping the C note divider (should be the first one from
left) with
> another one and see if the dead note moves to another note.
>
> Cheers,
> Margus
> Service.
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