Page 2 of 2

Re: Interesting Contraption to transfer cylinders to MP3

Posted: Fri Oct 05, 2012 2:14 pm
by barnettrp21122
I'm pretty sure Mr. Petty has passed on quite awhile ago. If you look at the pictures closely you can see that the setups are made of common components and some hand-formed thin metal pieces. The phono cartridge is mounted so it pivots freely up-and-down and side-to-side. The tracking force depends on your cartridge weight, which seems to be adequate The cartridge on my setup is cross-wired for vertical recordings, and has a mono-output jack.
I feed this into a flat pre-amplifier and then to a recording unit or computer sound card.
Bob

Re: Interesting Contraption to transfer cylinders to MP3

Posted: Wed Oct 17, 2012 5:00 am
by RefSeries
I have a Lomas AC2 pickup, which fits a standard Edison mount. This is a very well made device, and is fine for recording most cylinders. However it struggles a bit with shrunken records, and as I collect Lamberts and other early indestructibles I needed something which could cope with cylinders of 'non standard' size.

I made up a couple of tone arms for recording cylinders, using an Edison Home and a Standard. I am far from professional as far as engineering is concerned, but after a fair amount of filing and the use of model maker's tools, bearings, etc the contraptions work fairly well. The basic idea is to mount the tone arm assembly on the carriage rod and use a light counterbalance weight to keep the half nut on the feedscrew. The carriage runs on pullies and small ballraces. Motor noise can be filtered out using cheap software - I use Magix Audio Cleaning Lab, which does all the jobs I need for cleaning up cylinder recordings.

One arm uses a Shure 44, the other a Stanton 500. Both use styli from Expert Stylus for both two and four minute cylinders. Tracking weights can be adjusted, but about 3-4 grams seem to be about right. I did try a very short arm on the Standard, to see if arm moments were an issue on distorted Amberols, but the longer arms seem to work better.

I have found that while the clockwork motors on the Edisons are very good there can be a little flutter which becomes apparent on long violin notes and the like, so I have put a little electric motor in the Standard and this works fine. A simple electronic control kit does the trick to get the right speed. If anyone is interested I can post better pictures of this.

All very amateur, but it works. Easy to use, as the arms act like any other turntable deck. Clearly not an Archaeophone, but a bit cheaper! Hope this is useful.

Image

Image

Image

Re: Interesting Contraption to transfer cylinders to MP3

Posted: Wed Oct 17, 2012 9:40 am
by barnettrp21122
RefSeries:
I think your designs are rather extraordinary! Anything I could make would include cardboard and duct tape! :D
Thanks for the pictures!
Bob