WTB: Edison Automatic Recorder

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Chuck
Victor III
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Joined: Fri Mar 25, 2011 11:28 pm
Personal Text: Richards Laboratories http://www.richardslaboratories.com producing high quality cylinder blanks
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WTB: Edison Automatic Recorder

Post by Chuck »

Scouting around for an automatic recorder or
parts thereof. Prefer notched to fit later
style carriage arm on model D combination 2/4
machine.

I just hate to butcher a good one by notching it.
Please check your junk boxes. Thanks.

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

-Bell System Credo

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: WTB: Edison Automatic Recorder ***Found***

Post by Chuck »

Found it! It is an oddball one too.

It started out it's life as a standard speaker.
Then it somehow got parted out and lost its
tube-plate and the clamp ring.

Along the way someone took and filed a big flat
across the top of the body, so that operating
as a standard speaker it could rotate by the
correct amount in the later carriage that has the pin.

So, by the time it was offered to me rebuilt
as an automatic recorder, it was "pre-butchered" which is just what I was looking for.

Steve M. rebuilt it using a tube plate out of
a Dictaphone reproducer and with the inside
diameter of the sound tube enlarged out to
match the original. Also the threaded clamp-ring from (I think) a Dictaphone unit
was used.

It currently has a mica diaphragm and as I
have been talking about in another thread here
I am in the process of finding a glass diaphragm and the parts to try that out later.

Thanks again to David B. for hunting through
his collection of automatic recorders to find
this rather unique one and for offering it
to me!

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

-Bell System Credo

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