1920s Cradle Mic Antique Brass Sleeve

[paulc1Participant @paulc1]

Hi everyone,

I have purchased an Ellis Carbon Button Microphone from the 1920’s. It was supplied without a stand or base but it does have a short brass sleeve (17mm), with a diameter of 14.3mm. On this sleeve there is no thread at all and the cables run through the centre. What I need is an brass sleeve made up with a 5/8” thread on one end and the other end would need to fit the 14.3mm sleeve with a grub screw to hold it in place. Please see the attached drawing. On Amazon there is a listing for antique brass piping to cover radiator sleeves and this may be a good starting point.

Thanks,

Paul from South London, UK

[JasonBModerator @jasonb]

The OD of your sleeve will need to be about 18mm as the 5/8″thread is just under 16mm major diameter. Those pipe sleeves are usually intended to slip over 15mm OD pipe so will also be larger and the bore will not go down to 14.3mm.

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