B&W actually had a swinging link version that had a 1/4 inch shaft
connection to swing the link from the panel - and the swing arm also took a
plug in link for various bands . The low freq link had two layers of turns
concentric with each other . I built a pp 813 rig with the olde B&W plug in
coils and links- damn near killed myself when one day I had turned off all
ac - forgot to chicken stick the coil - and reached in to grab the coil and
got knocked across room - the plate contactor had welded shut and the 866's
had not cooled off enough to quit rectifying yet .
Good thing is I survived and you and BET I never do or did anything that
stupid again.
Hank K7HP
>
> <<<However, as many readers of this probably know, it is, ah, "uncommon"
> now.>>>
>
> Heh heh, tell that to all the guys running BC-610s. It sounds like you
> are
> trying to construct a linear amp but with a "retro" design. If you have
> not already done it, I'd start looking for old ARRL Handbooks from before
> ~1952, as they'll have a lot of link coupled tank circuit designs, but
> mostly for AM and CW rigs. They can be found at hamfests. What I have
> seen
> had the jack bar link connected to the feedline to the antenna. The guys
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