[sdiy] Transformer question

[Paul Perry]

Fair enough, but it depends on how much current you are drawing - I've had 
trouble with
a lightly loaded 18V AC transformer exceeding 30V through a half wave 
rectifier.

At least we can probably agree that the power supply, although the simplest 
looking
part of a synth, certainly needs to be looked at carefully. And yeah, those 
heatsinks..
no wonder the world has gone switchmode!

paul perry melbourne australia (prefers hum to smoke)

----- Original Message ----- 
From: "Stewart Pye"

> Decent quality transformers will output the rated voltage at the rated
> current, but not all transformers are decent quality.
>
> It will be safer if you go for the 18V secondary transformer, but beware
> that you will need larger heatsinks for the regulators that would have
> for the 15Vac transformer.
>