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Old 16th Feb 2021, 9:13 am   #3
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 6,736
Default Re: DIY Transformer Bobbin

Hi Retailer, a neat solution.
At one time it was possible to get paxolin square/ rectangular section tube in the UK in the popular core sizes as most transformers were "stick wound"; as most now use moulded bobbins this supply has dried up.
Pax sheet is still readily available and it may be quicker to print the tube and fabricate the cheeks.

In your design were the slots and steps for stiffening or simply to make it look like a commercial unit?

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