Ed Price wrote: 
 
 "Paul Burridge"  wrote in message 
 ... 
  On Sun, 16 Nov 2003 23:30:40 -0800, "Ed Price"  
  wrote: 
  
  Designing and building a product to provide many years of use, and then 
  capable of being repaired without access to unique components and/or 
 exotic 
  service equipment, is a concept so rare as to be thought a scam. 
  
  Can anyone recommend a decent commercial vector network analyser and 
  spectrum analyser that one can repair oneself if necessary and 
  hopefully keep them up and running for ever? 
  -- 
  
  "I expect history will be kind to me, since I intend to write it." 
                                                                     - 
 Winston Churchill 
 
 For the spectrum analyzer part, the best a hobbyist can usually afford is an 
 HP-141, with a few plug-ins (IIRC, they offered a total of 6, collect the 
 whole set!). And you will need the HP manuals (some of which are available 
 free from the US Army LOGSA site). And you will need some other basic and 
 decent lab gear (scope, counter, DMM, sig gens) to do the job right. 
 
 Sorry, but I can't comment on any Network Analyzers. 
 
This might be a bit off the exact topic but I have a friend who has a HP 
141 and the horozontal display scan has shrunk and folded over on top of 
itself. Having never worked on test equipment, I could only offer 
generic possibilities, (Voltages, deflection transistors, caps?). Is 
there are common part failure that can cause this to the best of your 
knowlege? 
 
Thanks, 
Dave 
 
		 
		
		
		
		
		
		
		
		
	
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