Vintage HiFi Audio Forum

Audio Discussion => TUBES TUBES TUBES => Topic started by: Falcon on October 14, 2010, 05:37:12 AM

Title: New to me McIntosh MA-230 with pics.
Post by: Falcon on October 14, 2010, 05:37:12 AM

  My wife bought me this McIntosh MA-230 integrated hybrid tube amp. A very cool piece. and sounds good to. This was the first hybrid integrated amp produced, Has a solid state pre-amp with a tube power amp section. The power tubes are 7591, the smaller tubes are 2, 12ax7 and 1 12au7. The smaller tubes are Telefunken's.
   I spent 4 hours on this, cleaning all the controls, and polishing the chassis and faceplate. Checking capacitors, and everything out. It is now working good. I do think the power tubes are at the end of there lifespan.  I also have the wood case, it is undergoing some repairs. A couple of deep scrapes, and a small crack.
    This sound real good the way it is, but I think I will do a total restoration after we get moved. It was after all, built way back in the 60's.  I think they were produced from 63-66.
  If anyone has a good quad of 7591 power tubes, let me know.
Here are a few pics.

Title: Re: New to me McIntosh MA-230 with pics.
Post by: Falcon on October 14, 2010, 05:38:48 AM

One more pic.

Title: Re: New to me McIntosh MA-230 with pics.
Post by: Kingman on October 14, 2010, 06:06:31 AM

It don't get much better than getting audio equipment from your wife!!! Looks GREAT!!!!  :D

Title: Re: New to me McIntosh MA-230 with pics.
Post by: non-prophet on October 14, 2010, 06:38:10 AM

If that is the one from Craigslist, I think I was second in line for it.  I am glad it went to a good home, fantastic score.

Title: Re: New to me McIntosh MA-230 with pics.
Post by: thuffman03 on October 14, 2010, 09:48:03 AM

Very nice score!

Title: Re: New to me McIntosh MA-230 with pics.
Post by: OCCD on October 14, 2010, 12:45:46 PM

Nice pic Mikey!!!

Title: Re: New to me McIntosh MA-230 with pics.
Post by: typethisin on October 14, 2010, 03:30:16 PM

mikey,

the pics are great. sweet piece. I am happy for you. Amazing score.

Title: Re: New to me McIntosh MA-230 with pics.
Post by: Reverend on October 14, 2010, 03:55:17 PM

Nice pickup Mike!

Title: Re: New to me McIntosh MA-230 with pics.
Post by: Colinbgood on October 14, 2010, 11:41:36 PM

very nice....

Title: Re: New to me McIntosh MA-230 with pics.
Post by: schwarcw on October 15, 2010, 12:07:18 AM

Greetings Mike!

I have a matched quad of Westinghouse 7591, testing close to NOS.  Let's talk!

Regards,

Carl

Title: Re: New to me McIntosh MA-230 with pics.
Post by: confused on November 02, 2010, 08:29:48 PM

Hi Carl,

I ended up with the Mac.  Could always use 7591 tubes.  PM or call to work out a deal.

THX,

Dale

Title: Re: New to me McIntosh MA-230 with pics.
Post by: BrianT on November 03, 2010, 09:17:38 PM

Mike.

That's a nice toy, if you get fed up with it let me know.

Brian.

Title: Re: New to me McIntosh MA-230 with pics.
Post by: schwarcw on November 03, 2010, 10:43:21 PM

Hi Dale!

I think we can do a tube swap.

Regards,

Carl

Title: Re: New to me McIntosh MA-230 with pics.
Post by: DaveS on November 11, 2010, 01:31:23 AM

Nice amp, BETTER WIFE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Title: Re: New to me McIntosh MA-230 with pics.
Post by: old_metal_head on November 12, 2010, 09:35:57 AM

Where is the HDMI?