[QuadList] Colortec board 12 capacitor corrosion

L.E. Odham leodham at centurylink.net
Sun Nov 11 15:04:02 CST 2012



Yeah, so did I. 

But after 40+ years.... 

Plus, I dont really know what condition the caps were in when it was powered down and retired. They may have already been started leaking by then. This would be I think about six or seven years ago. 

Sure wouldn't do no harm to check your spares just in case! 



Larry Odham 



www.quadtapexfer.com 







----- Original Message -----




Interesting photo, Larry. I thought on the shelf that kind of damage could not happen.  


Time to check the spares! 








Best, 
Park 


C. Park Seward 
Cell: 818-535-2747 
Home: 541-476-6657 
2" Quad and 1" "C" transfers 
The Transfer Lab at Video Park 
Visit us: http://www.videopark.com 




On Nov 10, 2012, at 2:40 PM, L.E. Odham wrote: 







Hi all, 
  


I had a interesting Saturday afternoon repairing board #12 from one of the 1011 colortecs here. 

A couple of the 270 uf mercury electrolytic capacitors had leaked over a period of time and the electrolyte had dissolved every bit of copper clad it came into contact with. 

It wasn't in a machine at this time, thank goodness. It had been sitting quietly on the shelf a number of years as a 'spare'??? 
  


An ugly mess indeed.... 
  


photo attached 
  


Larry Odham 
  


Quad Tape Transfer 

www.QUADTAPEXFER.com 
  

  

  

  
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