[QuadList] Colortec board 12 capacitor corrosion

[Don Norwood]

Hi Larry:

Yeah....that was a good price!

I'll bet you're talking about Hubert Henson's place in Winston Salem.   I got some things there too, but apparently, before I found out what was going on, they had already hauled a VR-1200C to the scrap yard!  From what I heard, it wasn't complete but I would love to have had it if the audio was intact.  The rest of the machine could be easily replaced.

I remember telling a guy you were working with in Kingsport (or Johnson City maybe?) about the pair of TR-600's that Hubert had.   Were they able to get them?  I never heard what happened to those machines, but I hope they didn't go to the scrap yard too!

Don Norwood
Digitrak Communications, Inc.
www.digitrakcom.com

  ----- Original Message ----- 
  From: L.E. Odham 
  To: Quad List 
  Sent: Monday, November 12, 2012 1:56 PM
  Subject: Re: [QuadList] Colortec board 12 capacitor corrosion






------------------------------------------------------------------------------


  Hi Don & Park,



  Yeah I wondered a little bit about why/how such a big mess was made, too. This particular colortec may have been exposed to extreme temperature changes over a period of time in an uncontrolled storage situation.

  I'm thinking it was one of the spare pieces that came from out back of the Winston-Salem cat house guy.  The fellow's name escapes me, but I do remember all those cats running around all inside the building.  There were a couple tractor trailers full of equipment & various parts-pieces parked out back and this colortec came from one of those vans I'm pretty sure.

  Maybe  the 15-20 degree freezing temperatures made them pop, or the 120 degrees inside heat in the summer.



  The last batch of those exact OEM type caps I purchased was at Sky Craft in Florida last Feb. after the Orlando hamfest. $4. dollars each for 270 uf.



  I shoulda bought more! haha.



  At this late date, I really want to stay as true to original as possible. Those oem's have lasted for 40+- yrs, a tall order for any electrolytic. Many years ago attending the engineering program at NE State Tech, I was taught that electrolytics have a shelf life; ie., they will go bad new sitting on the shelf after enough time passes and the electrolyte dries out enough. The sealed 'wet' caps were an attempt at stabilizing and extending the useable life by keeping the electrolyte stable(from drying out).



  Seems that idea worked pretty good!



  Larry Odham



  Quad Tape Transfer

  www.QUADTAPEXFER.com



   
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://quadvideotapegroup.com/pipermail/quadlist_quadvideotapegroup.com/attachments/20121112/782a5c41/attachment-0005.html>