Hi Dave,

Thanks for posting the photo, it makes clear that all three windings are
on the center leg of an E-core unlike the General Electric circuit. It
doesn't make it clear if the two "secondary" windings are connected in a
"bucking" configuration as the schematic implies, or in an "aiding"
configuration. With the open primary what is the voltage across the
light, is it the full heater supply voltage, approximately 6.3 volts, or
is it noticeably lower? This information would help explain how the two
windings are connected and how the circuit works.


Regards,

John Byrns


In article ,
"Dave Burson" wrote:

John,

I did post another wiring illustration from the schematic page on the
binaries. Please have a look and see whether it clarifies anything. I will
post a photo of the x-former in place, though I doubt it's of much help.
Thanks.

Dave

"John Byrns" wrote in message
...
In article 3Njai.154612$_c5.5197@attbi_s22,
TUFF (John Goller, k9uwa) wrote:

In article ,
says...

Hi John ... well you found him ... actually a friend of mine had them
wound ... for his E-155 and my E-155 and a few spare parts ... and yes
my buddy Kim Herron has a couple cores rewound that are left... he had
the transformer company in Grand Rapids, Michigan rewind them for us..

and yes its a 3 winding arrangement... nothing like a normal
transformer..
so do you have your iron core?

Hi John,

It's not my radio, Randy and I were simply discussing over on
alt.binaries.pictures.radio how the "Stewart-Warner reactance dimmer"
might actually work. This discussion is the result of a post by "Dave
Burson" on alt.binaries.pictures.radio who has a S-W model R-1822 with
an open primary on the reactance control "transformer". I cross posted
the discussion here because I remembered that someone here had talked
about fixing a similar problem on a GE set before. Dave hasn't
responded yet with any information on the physical construction of the
S-W "transformer", whether it's construction is similar to the GE
"transformer" or is different.


Regards,

John Byrns

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