[Hallicrafters] vibrator how it works

[Dick Blaney]

>From my experience, those old vibrater did not operate at 110-115 Hz.  Those 
vibraters did reverse the current flow at approximately 120 times per 
second.  This is the approximately the equilivent to 60 CPS, (for you 
newbies, CPS, or the proper term, cycles per second, is the same as Hz, and 
since Heinrich Hertz never understood the concept of alternating current, I 
have no idea why the proper term, (CPS),  was ever replaced with "Hz", since 
Heinrich had no concept whatever of alternating current.)

----- Original Message ----- 
From: "Mike Everette" <radiocompass at yahoo.com>
To: "GDM" <1gdm3 at charter.net>; <hallicrafters at mailman.qth.net>
Sent: Sunday, April 15, 2007 9:27 AM
Subject: Re: [Hallicrafters] vibrator how it works


> I've seen this work both ways -- okay, and not okay.
>
> Remember the vibrator gives a chopped DC output at
> around 110-115 Hz.  The vibrator transformers may not
> have enough iron in the core to work properly at 60 Hz
> input.  The result is, they run hot.  Very hot.  How
> long they last depends upon the individual
> transformer.
>
> 73
>
> Mike
> WA4DLF
>
> --- GDM <1gdm3 at charter.net> wrote:
>
>
>  One
>> 6.3 volt, 1O amp filament xformer did the trick.
>> 110 volt winding was
>> wired up to a standard wall plug, the vibrator was
>> removed from the
>> radio and the 6.3 VAC secondary was wired to the 6
>> volt input winding on
>> the power xformer on the radio.  Worked for 15
>> years.
>
>
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