[AMRadio] Filament choke
sbjohnston at aol.com
sbjohnston at aol.com
Wed Apr 29 18:48:17 EDT 2009
Excellent ideas today, guys - thank you very much. I 've got 100 watts
+ of drive, so I don't believe I'll use a tuned input in this design,
instead I'm going to swamp the input to the cathode with 15 1.5k 2W
resistors as was successful in the SB230. So the
cathode/filament/heater power circuit just needs to look open to the RF
but pass the low frequency AC to light it up.
Steve WD8DAS
sbjohnston at aol.com
http://www.wd8das.net/
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