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 Post subject: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Sun May 14, 2017 1:56 pm 
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Victor III
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Joined: Wed Jan 25, 2017 11:21 pm
Posts: 542
Location: Ft.Worth, Texas
Does anyone have a link or video for instructions of rebuilding a Columbia floating reproducer like for a B or Q? What holds the mica diaphragm in? Beeswax or a gasket? THanks
Edison Standard A , Edison Standard D , Edison Home B
Columbia B , Columbia Q , Victor VV-IV , Victor VV-VI


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Sun May 14, 2017 9:17 pm 
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Victor III
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Joined: Wed Jan 25, 2017 11:21 pm
Posts: 542
Location: Ft.Worth, Texas
Anyone here ever rebuilt one of these?
Edison Standard A , Edison Standard D , Edison Home B
Columbia B , Columbia Q , Victor VV-IV , Victor VV-VI


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Sun May 14, 2017 11:01 pm 
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Auxetophone
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Joined: Wed Jan 14, 2009 6:01 am
Posts: 1804
Location: Ferndale, MI
I rebuilt mine a few years ago. There a gasket on the inside, and the mica is held in with beeswax. The hardest part is forming a uniform beeswax rope, because I'm OCD and things have to be just so....

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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Mon May 15, 2017 12:01 am 
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Victor III
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Location: Ft.Worth, Texas
Thank you HMV! Do you recall if the inner gasket was made of rubber or foam or ? A lot of the beeswax on the outside of one of mine has flaked off so, Id like to replace the inner gasket before I reseal the outside with wax.
Edison Standard A , Edison Standard D , Edison Home B
Columbia B , Columbia Q , Victor VV-IV , Victor VV-VI


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Mon May 15, 2017 12:39 am 
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Auxetophone
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Location: Ferndale, MI
It was rubber, I imagine I bought it from Ron Sitko. He also sells mica, styli, & holders for them if you need.


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Mon May 15, 2017 3:56 am 
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Victor V
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Location: Where there's "hamburger ALL OVER the highway"...
That depends on the reproducer. Some have an outer rubber gasket with a screw-in bezel: others have the gasket held in with beeswax.

Bill


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Mon May 15, 2017 6:31 am 
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Victor IV
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A new blank with authentic formula and spiral core!
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Location: 615 1/2 South Main Street Princeton IL 61356.
When I rebuild a Columbia floating It should be a gasket, diaphragm bees wax, be careful to center the diaphragm any touching the side will cause the sound to be low or buzz. Many of these reproducers also had the stylus bar on an arm, where a pin goes through the outer part of the arm and then the center is cemented to the center of the diaphragm. I still believe that glass diaphragm sound better than mica, and If I have a choice of mica or glass I choose the glass, .007-.0075 glass.


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 Post subject: Re: Instructions for Rebuilding a Columbia B/Q Reproducer
PostPosted: Fri May 19, 2017 5:54 pm 
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Victor III
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Joined: Wed Jan 25, 2017 11:21 pm
Posts: 542
Location: Ft.Worth, Texas
I finally got the gasket I needed to rebuild the reproducer. mine only had one gasket between the mica and the shell and only beeswax on the outside of the mica so, thats how I resealed it. It sounds really good now! It was a pretty easy job but the beeswax is a bit of a pain to work with. By the way, hobby Lobby has pure beeswax in bar and pellet form in the candle making supplies. I used the pellets. I melted them in a glass jar and poured it out ona sheet of tin foil and cut it in thin strips with a razor blade. Rolled the strips to the thickness I needed with my fingers.


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Edison Standard A , Edison Standard D , Edison Home B
Columbia B , Columbia Q , Victor VV-IV , Victor VV-VI
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