[Amps] [HeathKit_HFAmps] Heathkit SB-1000 Arcing

[Carl]

If the arcing started after the caps were changed Id start in that area. Could be a loose cap hold down screw, ground wire, etc.

Carl
KM1H


  ----- Original Message ----- 
  From: Thomas F Giella NZ4O 
  To: amps @ COL ; a SB-1000 @ Yahoo 
  Sent: Friday, November 23, 2012 8:24 AM
  Subject: [HeathKit_HFAmps] Heathkit SB-1000 Arcing


    
  I have an old Heathkit SB-1000 made in 1989. It has a new 3-500Z tube and 
  new power supply capacitors.

  The amplifier has developed and internal arc somewhere but I can't locate 
  visually locate it. When the arc occurs the voltage drops from approximately 
  3100 to 2900 volts.

  So I presume it's occurring somewhere in the power supply. When the arcing 
  isn't occurring power output is within the normal range.

  My tech skills are not what they once were so any helpful comments would be 
  much appreciated.

  73 & GUD DX,
  Thomas F. Giella NZ4O
  Lakeland, FL, USA
  nz4o at tampabay.rr.com

  NZ4O Amateur Radio & SWL Autobiography: http://www.nz4o.com
  NZ4O MF/HF/6M Radiowave Propagation Forecast: http://www.solarcycle24.org 



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