[Amps] 4K Ultra Restoration

[Gary Smith]

To the guy doing the restoration of the 4kU:
Make a friend of someone in the air-conditioning biz get it for you.  Tell him you have a mutual friend (Jack Daniels , or if he likes birds, suggest a picture of a Wild Turkey posing on sealed glass container,) that would like to see you get what you need for your resto project.
I have found that such suggestions work very well when I ma in need of this sort of odd ball part.
73,
Gary... wa6fgi

  ----- Original Message ----- 
  From: Bob Maser 
  To: AMPS 
  Sent: Wednesday, December 07, 2005 9:06 AM
  Subject: [Amps] 4K Ultra Restoration


  After doing an inventory of my HV wire, I find that I have 17' of the real 
  good stuff - 40KV.  It is not enough to wire up a man-size amp but it will 
  be enough for the 4KU.

  Regarding cleaning the tar, I find that Tuff Stuff that can be bought at 
  Walmart for under $3 works great and it supposedly wont discolor paint. 
  Tarn-X works great for restoring silver plated material but it really stinks 
  and you have to watch out for it as it contains acid.

  After finally getting the RF deck out of the upper cabinet, I find that the 
  tar deposits are very light.  I don't want to get into removing that group 
  of 3 ganged tuned capacitors so I was relieved that they look good enough. 
  Cleaning up the chain drive mechanism turned to be a snap.  I'm waiting for 
  the Service manual that my good CA buddy W6RU up in B-field sent me. so I 
  can make sure that the timing is properly set when the tune knob is turned.

  Still looking for a replacement blower.  I did find the Dayton number 2C917. 
  $125 at Grainger but I can't buy from them because I don't have their secret 
  handshake.  Does anyone have input as to how noisy the stock blower is in 
  the 4KU?  The one I bought was really quiet but when I got inside it turned 
  out to be 2 stacked muffin fans that one of the previous owner/klugger had 
  substituted.  Maybe he didn't like the blower noise, who knows.

  Anyway, I'd like to get this amp on line before my A78 goes down the road 
  later this month. John, W4DJ, you really did a nice job on your A78 
  restoration. $400 for a Peter Dahl xfmr  Ouch!!

  Later,
  Bob  W6TR 

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