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API repairs
Old 16th August 2005
  #1
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superburtm's Avatar
 

API repairs

I bought and old 1972 API 550A and it has a scratchy intermitant cut boost pot on the low freq band. Any suggestions of who I should have fix up my baby?
Old 16th August 2005
  #2
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Avedis at Brent Averill worked on my 550As a couple of years ago and did a superb job.

Chris Garges
Charlotte, NC
Old 16th August 2005
  #3
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cool thanks! I just found out there are no pots on a 550A only rotary switches which I can clean myself.
Old 16th August 2005
  #4
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Cool. If you need an extra work done on it, I highly recommend taking it down to them, especially since you're in the area. They'll do a pretty thorough tune-up for a very reasonable price.

Chris Garges
Charlotte, NC
Old 16th August 2005
  #5
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Yeah if I can't handle it they are my first choice. I love their stuff and Avedis is a cool guy.
Old 16th August 2005
  #6
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Phil Cibley's Avatar
 

Try cleaning the switch with DeOxit or Cramolin before sending it out. This sounds like a dirty switch to me.
Old 16th August 2005
  #7
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Since they have silver contacts cleaning is the first thing to try, Caig D-5 is very good. Having it recapped would also not be a bad idea...
Old 16th August 2005
  #8
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If a module needs recapped are there subltle signs when listening or is it quite obvious that a module needs recapped? What are the symptoms? This is my first antique piece of gear.
Old 17th August 2005
  #9
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A little deox and it's brand new god this EQ is amazing! I checked inside when cleaning and the OPAMPS were labeled melville and Huntinton. Good news.

Old 17th August 2005
  #10
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I knew it. I've worked many miracles with Cramolin (the predecessor to DeOxit).
Old 18th August 2005
  #11
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nosebleedaudio's Avatar
 

Quote:
Originally Posted by superburtm
If a module needs recapped are there subltle signs when listening or is it quite obvious that a module needs recapped? What are the symptoms? This is my first antique piece of gear.
The low end is the first to go if it's a bad cap, but if it was me and they were 20+ years old I would replace them anyway. That way your sure they are up to date...
Old 19th August 2005
  #12
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I'm not gonna recap them until I don't like the way they sound. They sound great right now...however these things are over 30yrs old so I'm sure it the recap procedure will be coming up. Anybody know how much it costs to recap a 550A??
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