----- Original Message -----From: Russell RoseSent: Monday, December 22, 2008 4:48 PMSubject: Re: [vintagesynthrepair] Power supply for Roland M240Francois, i have a used original Roland power supply that you may have.
Please email me after Christmas as I am currently on the road. Russ
russrose@mindspring.com
On Dec 22, 2008, at 10:55 AM, babouche369 wrote:
> Hi there,
> I recently bought a Roland M240 Line Mixer, but the power supply
> (ACC120) was missing. I first thought it would be a piece of cake to
> find one on the net, but it seems not to be. I'm now looking to
> find an
> equivalent or to build one.
> It must supply a DC symmetrical 21.5 volt (i.e. +21.5V / 0V / -21.5V)
> at 500 mA.
> So, does someone have:
> - a living or dead ACC120 to sell at reasonable price?
> - the schematics for the ACC120 or an equivalent?
> - an idea to solve my problem?
> Because of the low needed current, I also thought twinking a standard
> PC power supply (most are able to yield at least +/- 12V @ 3A = 36 W,
> and I require less than 11 W). I know SMPS (SwitchMode Power Supplies)
> might behave nastily when twinked; does someone have ever done it?
>
> Thanks,
>
> Francois
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
Message
Re: [vintagesynthrepair] Power supply for Roland M240
2008-12-23 by Ron Petty
You can use two external wall power supplies wire
them with a common and you have a power supply. I'm sure you could find
something you could mount inside the mixer. The voltage could be set with
rheostats. Just an idea.
Ron