🚀 go-pugleaf

I'm looking for a voltage dependant resistor (VDR) for a Zenith 19DC22
Chassis.

The part is about the diameter of a nickel, about 3/16 inch thick and
looks much like a thermistor would.  It's coated with red epoxy.
I do not have the Zenith part number.  The part failed by arcing across
the body and blew out the tripler with it.

The component connects in series with a focus voltage tap coming from
the high voltage tripler.  It is mounted on a terminal strip behind the
flyback transformer.  It apparantely is used to automatically adjust 
brightness of the raster with high voltage fluctuations.  The low voltage
side of the component connects to the brightness limiter potentiometer,
with another series resistor and zener diode connecting to ground for the
voltage ref. of the control.

I have tried talking to two Zenith dealers in the area and they are no
help (the set is about 15 to 20 years old).

Any help on the net I can obtain in either getting the part, finding a 
source for the part, or its part number would be greatly appreciated.

Please e-mail your response.

Thanks,
Barry


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  Barry M. Fowler                        Hewlett Packard Company

  Networked Computer Manufacturing Operation - Roseville, California

  e-mail:  barry@hprmokg.rose.hp.com
  Verbal:  Hey Barry!
  R.F.  :  WB6JZL