I would expect the losses to be in the transformer core - in how far you can
magnetise them. Something you can try is to feed the lower of your two
frequencies into the carrier (center) connection. The carrier input will
work right down to DC as there is no transformer involved.
Ken
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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magnetise them. Something you can try is to feed the lower of your two
frequencies into the carrier (center) connection. The carrier input will
work right down to DC as there is no transformer involved.
Ken
>--- Andre Majorel <aym-htnys@...> wrote:_________
>> I think that's to be expected. Transformers are
>> inherently AC
>> devices. They can't pass very low frequencies.
>
>OK, I did a test using a MOUSER Tm018 1:1 transformer
>(connecting cables directly to both sides), and indeed
>there is a bass loss. However, it is fairly subtle,
>about 1 dB down at 30 Hz. Is it possible the
>particular combination of 4 diodes and 2 transformers
>causes this? When I build a passive ring mod with 2
>mouser transformers, the bass loss was huge, the
>signal was down at least 10-20 dB at low frequencies
>(I didn't measure exactly). With Kens ring mod, it is
>a lot better than with the mouser transformers, but
>the effect is still there. Can the diodes cause the
>bass loss?
>
>Rich
>
>
>
>
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Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>