[AMRadio] RF Chokes
Geoff/W5OMR
w5omr at w5omr.shacknet.nu
Sat Nov 22 10:54:45 EST 2003
A while back, some ham came over, and we got to talking about homebrewing.
He was building something, and needed an RF choke. I had a brand new, never
used, National RF choke, still in the original box. At the time I never had
any plans of building anything. I have my push-pull, link-coupled 250TH
final, and even though it was built in the 50's, it will probably outlive me.
But, recently I got the urge to build. I think the conversation here about
all the homebrewing that's been going on had a heavy hand to spark that
interest. I thank y'all for that.
The plan is to build up a final, using a single tube in the final. Either a
450TL, or a 304TL. I'm leaning towards the 450TL, because I've got
three of them, and a single tube, modulated by a pair interests me.
I've got the main tuning capacitor (B&W Butterfly w/neutralization caps
on the back) an HDVL jack-bar, all the plug in coils for 80 thru 10, an
aluminum chassis to mount it on, and most of the necessary associated
hardware... except for the RF choke.
I found a couple on E-bay... but $8.oo to $10.oo? Are they really that
expensive, even still today?
Does anyone have a spare they wouldn't mind parting with?
73 = Best Regards,
-Geoff/W5OMR
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