[Boatanchors] Cheap & Easy Selectivity

[rbethman]

So I suppose that two metal plates separated by a layer of glass doesn't 
qualify?

Look, a "gimmick" simply became a generic term for a quick and dirty 
hand-made capacitor.

This has become a matter of semantics in lieu of a discussion of the 
use.  This is no different than the neutralization in Heath rigs of a 
threaded aluminum rod inside the final cage OR adjacent to the final to 
act as a capacitor.  They simply did NOT use the term "gimmick".

BTW - most hookup wire in a radio is NOT solid. 

That's what happens when someone whom isn't in the hobby steps in - 
mis-information!

Bob - N0DGN

J. Forster wrote:
> The term 'gimmick' is more usually applied to a pair of solid, insulated
> wire (like hookup or magnet) twisted together fairly tightly. One pair of
> ends are the capacitor terminals. The other ends are just cut off.
>
> The capacitance may be adjusted down by snipping bits off the unconnected
> ends, or by untwisting a bit.
>
> -John
>   
>> Its also called a "gimmick" capacitor. Its even used in commercial radios.
>>
>> Carl
>> KM1H
>>     
>>> The Handbook say to use a "short wire", attached to the grid, and add a
>>> small amount of capacitance, creating feedback by bring the loose end in
>>> near proximity to the plate lead.
>>>
>>> This is a paraphrased condensation of the several paragraphs.
>>>
>>> Bob - N0DGN
>>>
>>> AI2Q wrote:
>>>       
>>>> Sounds like what a Q-multiplier box does.
>>>>
>>>> Vy 73, AI2Q, Alex
>>>>