[sdiy] Roland TR-909 PSU and reset circuit, replacement

[Adam Inglis]

Thanks Tony and Colin,
both good ideas I hadn't considered!
cheers
Adam
On 15/10/2011, at 7:04 PM, Colin f wrote:

>
>> The transformer in my TR-909's PSU has gone, and I can't seem
>> to find a suitable replacement (it's chassis-mount, and is
>> the sole physical support for the PSU PCB), so I'm thinking
>> of replacing it with a SMPS if I can find a suitable size,
>> maybe something like this one...
>> http://www.mean-well.com.au/shop/product.php?id_product=74
>> to give me the required +/- 15 volts and +5 volts.
>
> I replaced a dead 909 transformer with a pair of toroids, using some  
> alu
> angle for the support.
> See:
> http://www.colinfraser.com/tr909/909psu1.jpg
> http://www.colinfraser.com/tr909/909psu2.jpg
>
> This was a drop-in replacement.
>
> Cheers,
> Colin f
>
>
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