Kind of funny-- if you type in "MKH-110" into google you get Walt's page as
the first hit.
You're famous, man! ;)
At 12:03 PM 10/10/02 -0700, you wrote:
>Walt, you wrote,
>
>>I'm not using the phantom power on the MP-2. But did find a considerable
>>current drain into the MP-2 from the mic with direct connect.
>
>The MP-2's transformer would be conducting the 5V to ground through
>the coil, also magnetizing it in the process! This would reduce the
>saturation level for loud sounds. Who knows what pulling the voltage
>down at the output does to the performance of the mike's circuitry,
>can't be good.
>
>>The
>>Portadisc must have AC coupling inside it as it does not have that
>>problem.
>
>Mebbie it's a transformerless preamp? All such have input caps.
>
>>I'm now at the point trying to sort out a value for the cap as
>>Sennheiser did not specify. And that's all they show, just a cap symbol.
>
>Big, big, big cap in series for low-frequency response. What's the
>output Z of the mike?
>
>>They did spec the cap on the 8volt line at 500mf.
>
>a filter cap to ground?
>
>>Also speced a 8 volt
>>zenar in there, but I've not been able to locate those, so just have the
>>voltage adjusted with trimpots.
>>
>>I'll be happy for any suggestions on that part if you have worked with
>>the mic.
>
>I haven't, just looked it up in old files here.
>
>-Dan
>
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