[78-L] Waveforms - Waveschmorms? [was Waveforms]
Malcolm Rockwell
malcolm at 78data.com
Fri Jan 18 10:38:01 PST 2013
My "Edison" cartridge is wired vertically for noise reduction playback
at the source.
Thanks,
Mal
*******
On 1/18/2013 8:34 AM, Jeff Lichtman wrote:
> Edison discs are vertically cut, and so are some Pathes. When you play a vertically cut record using a stereo cartridge, one of the channels will be inverted unless you wire the cartridge specially (or invert one of the channels somewhere else, like in a pre-amp with a "vertical" switch).
>
>> Another thing that interests me is why some transfers in stereo, of mono
>> material, show the 2 waveforms in lock-step while others are 180 degrees
>> out of phase. Or could it just be one of my regular cartridges is wired
>> that way? I only have one of those and make a point not to use it unless
>> I'm transferring Pathe or Edison discs.
>> More investigation is needed on my part, I think.
>> Malcolm
> - Jeff Lichtman
> jeff at swazoo.com
> Check out Swazoo Koolak Photography
> at http://swazoo.com/
>
>
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