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Old 4th Dec 2021, 1:45 pm   #21
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
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Default Re: Practical Electronics. Battery Valve Radio Power Supply.

@kalee Many thanks for that. The Aliexpress modules need active cooling when worked hard, so I need to think about best way to package, the module, a filter and the fan. I was thinking about making a box for them out of thin brass sheet.

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