> Hi there, I've just been playing with my new a126 VC Frequency
> Shifter, and I notice now that the initial rush of joy subsides that
> the oscillator bleeds through to the output, quite loudly. Is this
> normal, or can it be fixed with some recallibration, twiddling a few
> potentiometers A question for the great Dieter I guess...

The frequency shifter uses two internal ring modulators that usually have a
feedthrough in the -50dB range (in relation to the max. audio signal). If
it's more it can be adjusted as described in the internal service document.
I'll send the document as an pdf attachment to your email address.

To obtain a complete suppression of the carrier signal a squelch circuit
should be patched like shown in the A-114 manual (page 4).

Best wishes
Dieter Doepfer


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