BBC 16 inch Transcription Disc
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Wednesday, September 21, 2011
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A recent request to 'clean and transfer' an acetate disc seemed like nothing unusual. Until, that is, the customer arrived at the studio clutching a very large package. When the disc was revealed, it turned out to be a full 16 inches across - a BBC transcription disc produced in 1945. The record was in a pretty awful state - the surface was covered in a white palmitic acid coating, a deposit which had built up during the intervening 66 years. Careful cleaning with dilute solutions of sodium bicarbonate and ammonia, slowly dissolved away the acid to reveal a near perfect groove! The before, during and after photos below tell the story more clearly. |
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| 1 - Untreated record on turntable |
2 - Part-way through cleaning | |
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| 3 - Fully cleaned and ready to play | 4 - Transcribing on the EMT950 | |
| The EMT 950 turntable was used to transcribe this oversized disc, which incidentally played from the inside groove outwards! | ||
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