[sdiy] uWave xfer question

[Jason Proctor]

hi Stew, thanks for the response.

i'm not convinced the xfer is actually functioning right, so i'm 
reluctant to fire it up (i've not seen it operate at all). also it's 
230 and i don't have a converter.

i initially asked on the Waldorf list and gearslutz, some replies but 
no schematics and no authoritative specs. seems weird that it's not 
documented.

the xfer itself seems to be almost potted! though i will probably cut 
it open and see what's what at some point soon.

i'm sure someone will appear with schems etc at some point...

J


>Hi Jason,
>
>Since the old transformer is still working you can measure the 
>output voltage. You can also measure the current draw to work out 
>the VA rating you need on the new transformer.
>
>Cheers,
>Stew.
>
>
>Jason Proctor wrote:
>>i have here a rev A Waldorf Microwave 1 with what i think is a 
>>busted xfer. apparently while with its previous owner a supply cap 
>>shorted, and after the caps were replaced the xfer ran very hot and 
>>unreliably. given that, and the fact that i'm in the USA and it's 
>>an Australian (230v) model, i'm thinking i will replace the xfer 
>>anyway and then go looking for other things that might be up.
>>
>>so far i've not been able to talk anyone into giving me the actual 
>>specs for the stock xfer, which is a bit odd given that this has 
>>happened to others.
>>
>>i see regs for +/-12, +8 (?), and +5 for the digital side. could i 
>>run the whole thing off a sufficiently beefy +/-15 supply?
>>
>>thanks for any help with this,
>>J
>>
>>
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