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Old 3rd Dec 2021, 11:19 pm   #14
Terry_VK5TM
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Join Date: Oct 2010
Location: Tintinara, South Australia, Australia
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Default Re: Practical Electronics. Battery Valve Radio Power Supply.

The PE/Siliconchip design also uses some esoteric bits as opposed to more garden variety components and is not small - as in no chance of fitting in a battery space.

There are better designs out there.

Re the 18650 cells - the LT side has two cells in parallel (design flaw no1) and HT side uses two in series.
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