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Comedy Concertina
With the usual rock-band line-up of ukulele, double bass, washboard and phonofiddle, and with harmonies to die to, the Boodlum's find humour in the best and worst of popular music. They needed a new prop ...

Parts list

Qty Product Part number
1 Concertina
1 Pull Action DC D-Frame Solenoid, 7mm stroke, 5W, 6 V dc 250-0760
1 Panasonic Lithium CR2032 3V Lithium Manganese Dioxide Coin Battery 457-4757


I am an inventor, engineer, writer and presenter. Other stuff: Royal Academy of Engineering Visiting Professor of Engineering: Creativity and Communication at Brunel University London; Fellow of the Institution of Mechanical Engineers and have a PhD in bubbles; Judge on BBC Robot Wars.


October 28, 2019 08:35

When using solenoids for large locking force loads you can have then releasing a larger sprung deadbolt. That is more complex and heavier so Lucy's simpler solution is a better option for this project

0 Votes

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