Diamond B Reproducer

[tcmeeno]

Hi I'm new to the Edison Forum and was wondering
if a diamond disc stylus would work on a diamond B
reproducer? Any help would be appreciated
Terry

[gramophoneshane]

Apparently, the stylus is the same, but the needle bars are different. I don't know for sure if this is correct, but the subject came up on another board, and that's what was posted by a couple different people.

[ultona]

The stylus is the same. The needle bar for diamond "B"s, "C"s etc is shorter than that of a DD reproducer, though...

Sean

[tcmeeno]

Might be worth trying
Thanks,Terry

[ultona]

Terry,

With some very careful grinding down of the "tail", you can do it. You'll have to also create a new notch where the link would hook on.

Tedious, but again, it can be done.

Sean

[tcmeeno]

Thanks Sean
I'm a model airplane builder so
that kinda stuff I can do.
Thanks Terry

[maroongem]

ultona said:

Terry,

With some very careful grinding down of the "tail", you can do it. You'll have to also create a new notch where the link would hook on.

Tedious, but again, it can be done.

Sean

Tell me about it!! ;D

[steve]

Why not just de solder the stylus assembly and transfer it?

Steve

[lukewarmwater]

The diamond is not soldered in, it is plated in. Luke W.

[steve]

The diamond assembly is soldered in. John Nagy de soldered and replaced about five of these for me, he had some diamond assemblies from Expert and after he de soldered them he sent me the old ones. It is very common to think they were plated in, I used to think they were plated in until I read the book below carefully, even the author of the book forgot and said they were plated in. Expert glues theirs in. If anyone want a copy of the page showing the drawing described below send me your e-mail address.

According to Edison Diamond Disc Re-Creations records & artists 1910-1929 page 107:

In this process the diamonds were first silver plated, then mounted on rods with paraffin, plated for 72 hours with nickel layers electro deposited under tension. The styli were thus held under layers of nickel at thousands of pounds of pressure. The nickel-encased diamonds were then polished to conical shape, the nickel at the stylus point being found away as the diamond was polished. The finished stylus was then soldered into its stylus bar. In the early days, bare diamonds were just soldered into bars and were prone to breakage when carelessly lowered onto the record.

The original DD styli were soldered in. The earliest bars have the bare diamond soldered in; the later ones were first plated with nickel and then soldered in. To understand this think of a wooden pencil the diamond is the lead. When the pencil is sharpened the wood is removed and the lead is shaped, the wood is the nickel and the lead is the diamond.

Steve

[saxymojo]

Thanks for that Steve, It's good to know how it was done.

Regards Marcel