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 FADA Speaker Box Restored
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 Return to top of page · Post #: 1 · Written at 12:30:15 PM on 18 September 2019.
Rudolf's Gravatar
 Location: Brisbane, QLD
 Member since 18 September 2010
 Member #: 739
 Postcount: 145

I've spent quite a bit of time restoring a 1920s FADA Speaker box made of Pot Metal (I know it's rubbish). I received it in several pieces and was destined for the tip but decided to take up the challange. I used JB Weld 2 part glue, had to use a file and what ever other tools needed to achieve a satifactory result. The end result can be seen by the before during and after photos.

Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker
Loudspeaker


 
 Return to top of page · Post #: 2 · Written at 8:25:07 PM on 19 September 2019.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5491

Photos uploaded.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 3 · Written at 11:36:53 PM on 19 September 2019.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5258

JB Weld saves the day, yet again. Very nice job.


 
 Return to top of page · Post #: 4 · Written at 6:51:52 AM on 21 September 2019.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 563

Yes, a nice job and why not fix a piece of unobtanium.
Good that the pieces were all there.


Fred.


 
 Return to top of page · Post #: 5 · Written at 8:31:55 AM on 21 September 2019.
STC830's Gravatar
 Location: NSW
 Member since 10 June 2010
 Member #: 681
 Postcount: 802

The disintegration of "pot metal" or zinc die castings is because of impurities in the zinc, either as supplied, or because it is picked up in the casting shop by recycling impure zinc from the clean up of the casting. Your casting doesn't look as if it has disintegrated (and it has had plenty of time from the mid 1920s), but rather might have had a misadventure such as being dropped.

A nice restoration of a rare piece.


 
 Return to top of page · Post #: 6 · Written at 6:54:42 PM on 21 September 2019.
Rudolf's Gravatar
 Location: Brisbane, QLD
 Member since 18 September 2010
 Member #: 739
 Postcount: 145

Alas Fred, it wasn't all there might have to build the missing bits or not depends on time.

https://www.radiomuseum.org/r/fada_15_dynamic_speaker.html


 
 Return to top of page · Post #: 7 · Written at 8:15:22 AM on 22 September 2019.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 563

O crap, what I thought was the front is the back!
Ooops. Now, there is a challenge after all.
Fret saw some wood ply to the shape glue it in, silver paint, jobs done!
Sorry just a thought bubble.
I guess the purists would make up a mould, pour a pot metal replacement and then carefully weld that in.

Fred.


 
 Return to top of page · Post #: 8 · Written at 9:45:41 PM on 22 September 2019.
Rudolf's Gravatar
 Location: Brisbane, QLD
 Member since 18 September 2010
 Member #: 739
 Postcount: 145

I'll most likely do a drawing to scale first but it's going to have to wait, have a few other restorations before that happens as well as my PSA test again in 2 weeks.


 
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