[78-L] Can someone help this collectore re: Home Recordings like Record Disc Co?

[Royal Pemberton]

I had the magnetic attraction syndrome using a Grado pickup on some
steel base lacquers I transferred about 10 years ago.  My workaround
used one of those clip-on dust brushes they used to sell, that
attached to the head shell or tonearm.

On 11/16/08, Chris Zwarg <doctordisc at truesoundtransfers.de> wrote:
> At 16:34 16.11.2008, you wrote:
>
>>Collector Greg Cline posted this on Phonolist but I know there are more
>> "experts" here who can help him. He is not a 78-L member.
>>
>>Please read his question and email him DIRECT at: DrGregC at msn.com
>>
>>Thanks folks!
>>
>>Steve
>>
>>Although this may be a little off-topic, I recently came into possession of
>> a cache of old recordings made by my uncle in 1946. These are
>> transcriptions of the voices of my family 62 years ago. Pretty cool. He
>> also recorded some radio programs including a game between the Yankees &
>> the Brooklyn Dodgers.In addition to The Record Disc Corp., there are also
>> transcription recordings on National Recording Disc, Melodisc, Century
>> Radio Co., The Recordisc Corp., Philco Safety Record, and the Wilcox-Gay
>> Corp. Some are recorded at 78 rpm, but most are 33 1/3.In addition to
>> getting more information about this whole recording process, I need to
>> solve a problem. The discs are recorded on different substrates. Paper,
>> aluminum, and some type of magnetic iron or steel. The most valuable
>> recordings are on the magnetic steel records.In addition to my many
>> victrolas, I have two fully functional turntables with modern magnetic
>> cartridges. I cannot play the discs. The cartridge gets sucked flat
>
>> onto the steel records, compressing the cantilever & stylus by magnetic
>> attraction.So. How do I play these recordings? My only solution is to find
>> an old record player with an inexpensive crystal cartridge. Any other
>> ideas? Any insight into this process is greatly appreciated.
>
> Try to reduce the tracking weight; maybe you can get the tonearm
> counterweight outwards far enough to counteract the magnetic attraction.
> Also, there are dedicated 78rpm styli (like the Shure N44/C) whose
> cantilevers are probably stiff enough to withstand the downwards magnetic
> force. A high-compliance cantilever, as you seem to be using, will give more
> trouble than joy when trying to play ancient home recordings which are more
> often than not worn and/or warped and will likely need a higher than usual
> tracking force (which the "soft" cantilever won't support even without
> magnetism) to reproduce optimally without skipping and undue rumble.
>
> A crystal cartridge would be the "last straw" only, as these usually have
> lower fidelity than you'd wish and often don't work together well with
> solid-state amplifiers (hum problems compounded by a lack of bass response,
> caused by the very high impedance of most crystal cartridges).
>
> Chris Zwarg
>
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