[AMRadio] AMRadio Digest (should have been LINK COUPLING)

Tue Sep 17 11:42:28 EDT 2013

I had a new ham in the shack recently and he was asking why I had a big huge wooden kitchen spoon, not to mention a Giant insulated
screwdriver both by the BC-610... I explained about  adjusting the link coil with the spoon...and safe-ing the transmitter by
discharging caps with the screwdriver... then I finished up with peaking the grid and dripping the plate... after that he needed a rest...

Warren W1GUD

On Sep 17, 2013, at 11:27 AM, Donald Chester <k4kyv at charter.net> wrote:

>> ya but the same people don't think transformers are mysterious and
>> they use them all the time.
>> 
>> Rob  K5UJ
> 
> Of course, they don't realise that link  coupling IS a transformer. But wait - there is no TOROID - this is the 21st century, remember?
> 
> 
>> On Tue, Sep 17, 2013 at 1:47 AM, Ross Stenberg <k9cox at charter.net> wrote:
> 
>> I run either a BC-610 or a T-213.  The movable links in the PA coils keep me well aware of link coupling!
>> 
>> Bob - N0DGN
> 
> Both my homebrew transmitters use  link coupling in the exciter stages, the PA stage and the antenna tuner. The swinging link in the rf driver stage is what I use to adjust grid drive, and the one in the final adjusts antenna  coupling. OWL all the way, not a sprig of coax anywhere in the entire system between the rf final plate and the antenna radiating element.
> 
> So-o-o twentieth century!
> 
> And Geoff, I solved your problem more than 20 years ago when I had the external shack, formerly a one-room school building, moved onto the property. All the radio stuff is gone from the room in the house, except for some antique BC receivers. It's now the computer room, and my wife does her quilting and sewing there whenever she actually works on it, and it serves as a guest bedroom.
> 
> But we still call it the radio room.
> 
> 
> Don k4kyv
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