Hi All
I am gathering the parts to build a two valve 3-500Z linear amp.
All the suggestions for the filament choke seem to be to purchase from RF
parts or surplus sales in the USA.
I haven't been able to find any info on winding a homebrew one.
Is there something really special about the core or will any ferrite rod do
?
Any info on wire size and the number of turns would be very useful
Thanks Iain G4DPF
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