[sdiy] Siel OR400 Transformer needed

M Maeghan Skala synth.diy at pulsewidthmod.com
Fri Jul 26 21:57:43 CEST 2013

here's the schematics for the synth https://docs.google.com/file/d/0B8AGUCtwqUz4bnNFQnNWUGVrMk0/edit?usp=sharing

hope this helps

On Jul 26, 2013, at 3:48 PM, ASSI <Stromeko at nexgo.de> wrote:

> On Friday 26 July 2013, 11:16:04, Steve Lenham wrote:
>> BTW, it is OK to use a higher VA-rated transformer if it is easier to
>> source and will physically fit.
> If this is intended as a replacement for something built pre 1985 or so, 
> then I'd not make that recommendation without looking at the indivdual 
> circuit.
> Most often a the higher rated transformer will have less voltage drop under 
> load (depending on the core material and winding style used this could be 
> more than 10%).  This, in combination with the now higher line voltage (up 
> from nominally 220V to 230V and in most places another 5V higher on average) 
> is enough to push some aged components over the edge, especially if their 
> rating was somewhat borderline to start with.
> Regards,
> Achim.
> -- 
> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
> Factory and User Sound Singles for Waldorf rackAttack:
> http://Synth.Stromeko.net/Downloads.html#WaldorfSounds
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