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Columbia Type AB mainspring query

Posted: Fri Mar 29, 2024 3:42 pm
by Dulcetto
Hello from UK , I wonder if one of our American members would be able to tell me the dimensions of the mainsprings used in the Columbia Type AB Graphophone ? and would anyone know if the same spring size was used in other Columbia models , particularly the type B ? I need to source a new mainspring for an AB , ( one spring is ok , the other has broken near its centre ) and would be grateful for any assistance in the matter. ( I have a USA shipping address I can use if necessary ) Many thanks .

Re: Columbia Type AB mainspring query

Posted: Fri Mar 29, 2024 5:30 pm
by phonogfp
You are correct - - the mainsprings in the AB are identical to those used in the B.

George P.

Re: Columbia Type AB mainspring query

Posted: Fri Mar 29, 2024 7:12 pm
by Dulcetto
phonogfp wrote: Fri Mar 29, 2024 5:30 pm You are correct - - the mainsprings in the AB are identical to those used in the B.

George P.
Ah , many thanks George for confirming that , as I expected it might be . Regards PAUL B.

Re: Columbia Type AB mainspring query

Posted: Fri Mar 29, 2024 8:14 pm
by phonogfp
Happy to help!

George P.