DONT REPLACE THAT EDISON STYLUS

Share your phonograph repair & restoration techniques here
User avatar
OrthoSean
Victor V
Posts: 2912
Joined: Thu Jan 08, 2009 1:33 pm
Location: Near NY's Capital

Re: DONT REPLACE THAT EDISON STYLUS

Post by OrthoSean »

I agree about C & H (and related) styli, turn them and you're all set.

Sean

estott
Victor Monarch
Posts: 4175
Joined: Wed Jan 07, 2009 4:23 pm
Personal Text: I have good days...this might not be one of them
Location: Albany NY

Re: DONT REPLACE THAT EDISON STYLUS

Post by estott »

OrthoSean wrote:I agree about C & H (and related) styli, turn them and you're all set.

Sean
Just have to make sure they haven't been turned already

User avatar
OrthoSean
Victor V
Posts: 2912
Joined: Thu Jan 08, 2009 1:33 pm
Location: Near NY's Capital

Re: DONT REPLACE THAT EDISON STYLUS

Post by OrthoSean »

That's what the loupe is for!

Sean

User avatar
Chuck
Victor III
Posts: 891
Joined: Fri Mar 25, 2011 11:28 pm
Personal Text: Richards Laboratories http://www.richardslaboratories.com producing high quality cylinder blanks
Contact:

Re: DONT REPLACE THAT EDISON STYLUS

Post by Chuck »

This is an interesting topic!

I had both my C and my H reproducers worked
on by John Nagy back in about 1982.

He did a very professional job on both of them. I have since that time, examined both
of those styli under various types of
microscopes many times to check them periodically.

John turned both of them. Under 400x magnification and bright light, the old worn
surface on both can clearly be seen.

They were turned 120 degrees. That provides
(3) brand new working surfaces for each
original stylus. I cannot detect any
noticable wear on surface #2 of either of
of these reproducers.

It's fun to study Edison sapphire styli
under a microscope. Use the highest magnification you can find. I took them in
to a jeweler's one time and he let me use his
60x stereo diamond grading microscope. You
can't see as much detail at 60x as at 400x,
but at least 60x gives you a semi-decent look.

Chuck
"Sustained success depends on searching
for, and gaining, fundamental understanding"

-Bell System Credo

obmcclintock
Victor I
Posts: 122
Joined: Fri Jun 28, 2013 10:10 pm
Personal Text: What can be cranked turns my crank.
Location: Central Minnesota

Re: DONT REPLACE THAT EDISON STYLUS

Post by obmcclintock »

I am new to the forums here but have a question if anyone can help me please. I am replacing a stylus for a two minute cylinder phonograph. I have been told that the ball on the end of a ballpoint pen is about the right size. Does anyone know about this?
I just need to know if the size is about right. Thank you, Dave

Phonofreak
Victor VI
Posts: 3720
Joined: Tue Mar 23, 2010 7:00 pm
Location: Western, WA State

Re: DONT REPLACE THAT EDISON STYLUS

Post by Phonofreak »

It's best to have a good stylus installed on your reproducer. I'm not sure if a ball point pen ball will fit, but I wouldn't take a chance. You'll ruin your record and possibly ruin the reproducer. It's best to send it off somewhere to have it done. PM me, and I will give you contacts or you can look at the links section on this forum.
Harvey Kravitz

User avatar
startgroove
Victor III
Posts: 887
Joined: Sat Apr 20, 2013 3:01 pm
Location: Coos Bay, Oregon

Re: DONT REPLACE THAT EDISON STYLUS

Post by startgroove »

Somewhere I learned that the DD stylus had a 3 mil radius. If that is true, then it is the same radius of the earlier 78 rpm record stylus's. Occasionally, on Ebay, those 78 rpm stylus's appear NOS. If only someone could develop a method of installing those on a DD needle bar.

User avatar
VintageTechnologies
Victor IV
Posts: 1651
Joined: Thu Jul 14, 2011 12:09 pm

Re: DONT REPLACE THAT EDISON STYLUS

Post by VintageTechnologies »

startgroove wrote:Somewhere I learned that the DD stylus had a 3 mil radius. If that is true, then it is the same radius of the earlier 78 rpm record stylus's. Occasionally, on Ebay, those 78 rpm stylus's appear NOS. If only someone could develop a method of installing those on a DD needle bar.
I suspect the stylus profiles may be different, even if the radii are the same. Although I have not studied a 78rpm stylus under a microscope, I have examined the DD stylus in detail. The DD stylus looks like a cone whose tip is a perfect hemisphere, rather than a point. The tips of 78rpm stylii are probably more pointed or elliptical.

obmcclintock
Victor I
Posts: 122
Joined: Fri Jun 28, 2013 10:10 pm
Personal Text: What can be cranked turns my crank.
Location: Central Minnesota

Re: DONT REPLACE THAT EDISON STYLUS

Post by obmcclintock »

As an experiment I used a medium ball point pen ball as a 2 minute stylus. It appears to be the same MM as a regular 2 minute stylus. I just left the ball in the original short metal ball point mounting, removed the long plastic ink cartridge, removed the ink from the end with alcohol, and mounted it on my own homemade PVC floating Columbia Q reproducer. The interesting phenomena about this arrangement is that the ball rotates in its mounting yet not nearly as fast however as it cannot keep up with the travel of the cylinder record but ensures that no one side of the ball will wear more than the rest. It is also self-cleaning. It has incredible sound and will probably last as long or longer than a glass or even a sapphire stylus. The purists on here will probably have a little problem with my discovery but it is great for a "poor mans" reproducer.Actually this discovery was posted by another man on here several years ago so he gets the credit. In any case try it, It works very well. Dave

Post Reply