[sdiy] passive ring modulator transformers

[Simon Brouwer]

Hi, slightly off-topic,
 
I imagine a big part of the sonic difference between the
transformer-and-diode-ring modulator and analog-multiplier circuits is the
nonlinear behaviour of the diode ring.
 
If the transformers do not contribute a lot of distortion (assuming that in this
application they are not driven to saturation), they might be replaced by opamp
circuits without losing much of the characteristic sound.
 
Best regards
Simon
 
 

> Op 16 januari 2016 om 23:26 schreef alfred.pear at gmail.com:
> 
>  hello SDIYers,
> 
>  i'm currently trying to figure out how to get reasonably affordable
> transformers for a passive ring modulator.
> 
>  i'm finding that terminology like "audio transformer" does not necessarily
> correspond to a 20hz to 20khz frequency response - and that those types of
> transformers seem quite rare & expensive. i realize low frequency is a
> perpetual problem in the x-former world, but it would be nice to find
> something that reliably reached a low of 100hz.
> 
>  i was wondering if people had any go-to sources for the kind of solution i'm
> looking for.
> 
>  thanks,
>  yAP yAP
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