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Old 31st Jul 2022, 9:27 am   #10
lesmw0sec
Octode
 
Join Date: Jul 2009
Location: Carmel, Llannerchymedd, Anglesey, UK.
Posts: 1,509
Default Re: Denco coils substitute

There is an alternative regarding dust cores. I used sections of old ferrite rod, glued to a brass leader screw. Attached is an example which is the input tuner for my linear amplifier. The formers are PTFE.
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