[Boatanchors] OK Smart People: Capacitive Voltage Divider?

[Geoff]

With that method you can bring out multiple taps to a switch to fine tune 
such as when the utility company lines are having big sags during heavy AC 
loads.

Carl


----- Original Message ----- 
From: "J. Forster" <jfor at quikus.com>
To: "Jim Degenhart" <KF9XK at MTCO.COM>
Cc: <boatanchors at mailman.qth.net>
Sent: Sunday, March 18, 2012 2:16 PM
Subject: Re: [Boatanchors] OK Smart People: Capacitive Voltage Divider?


> Another source of a suitable transformer is a junk Variac or Powerstat.
>
> Strip off all the mechanical bits, including the wiper and related stuff
> Insulate the track with tape or varnish (glyptal)
> Wind a few turns of #12 or #10 THHN house wire.
> Then hook it up as I diagrammed before.
>
> The size is easy to calculate.
>
> Load Amps Drawn x Voltage Drop = Watts required
>
> Pick a Variac a bit bigger. (you can even use a near useless 240 V Variac
> if you have one around.
>
> The new winding needs to be big enough for t6he4 full load current. Adjust
> number of turns to taste.
>
> Best,
>
> -Jofn
> ===============
>
>
>
>> Rob the transformer is open frame. Acquired at Dayton several years ago.
>> It
>> is fairly loose fit in 12" nema box. Left enough space for wires and 
>> bolts
>> for a shelf bracket. As for the weight it seemed light for the first few
>> spaces but after taking several breaks I was ready to just set it on an
>> empty space. The cost was good, 5 bucks. The person selling it kept
>> telling
>> everyone who stopped by that it was no good for a power supply.
>> So I was forced to remove it to my place.
>> Jim
>> KF9XK
>>
>>
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>
>
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