[Boatanchors] Neutralization indicator

[Carl]

You can also use a receiver as the indicator with a signal generator as the 
source. Do it cold and if your careful touch it up it hot. Use an attenuator 
to the receiver and a fast inline fuse in case something unexpected happens. 
I use a tube receiver, less chance of hurting it.

Carl
KM1H


----- Original Message ----- 
From: "Barrie Smith" <barrie at centric.net>
To: "Boatanchors Mail List" <boatanchors at mailman.qth.net>
Sent: Tuesday, August 03, 2010 8:46 PM
Subject: [Boatanchors] Neutralization indicator


> Hello:
>
> I'm about to neutralize a push-pull pair of triodes.  Re-reading the 
> various methods of building and using an indicator, I had an idea.
>
> A couple of the methods use a coil with a lamp, or a coil   with a 
> transistor and meter.  It struck me that I already have a coil in close 
> proximity to the final tank coil:  The swinging link.
>
> What if I soldered a small incandescent lamp to a PL-259 and pluggged that 
> into the output socket?
>
> Finer minds should know if that would work!
>
> 73, Barrie, W7ALW
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