Gordon Gow Discusses the Unity Coupled Transformer

[62caddy]

Just discovered this video. I had done an AK search but found no thread on it so I thought I'd post it here for anyone who hasn't seen the video. I'm guessing it was produced sometime in the '70s.

http://www.youtube.com/watch?v=W58Rqx_4u2w

A big thanks to Audio Classics for posting this clip on Youtube. :thmbsp:

 

[onemug]

Loved it. Thanks for posting.

The original McIntosh people were geniuses and really cared about their customers. I was a happy and proud owner of their equipment starting back in the very early 70's.

 

[kevzep]

Just discovered this video. I had done an AK search but found no thread on it so I thought I'd post it here for anyone who hasn't seen the video. I'm guessing it was produced sometime in the '70s.

http://www.youtube.com/watch?v=W58Rqx_4u2w

A big thanks to Audio Classics for posting this clip on Youtube. :thmbsp:

Yeah, thats a good one, I was buying my MC352 and emailing back and forth with Mike from AC and he sent me the link to that clip....

The poor woman winding the transformer seemed to be glazing over....lol....
But very interesting and a genius design....

 

[william.keith]

What did he say :saywhat: Makes you proud to own McIntosh.

 

[chuckworkb]

I had to dig back into the past years of electronic education to get what he was saying. All I know is, my Mc gear sounds great!

 

[onemug]

What did he say :saywhat: Makes you proud to own McIntosh.

I'm guessing you are referring to my post. If so:

He didn't say anything in it that "makes me proud". I just said I enjoyed the video.

Second paragraph is just my opinion.

fwiw...these days I'm a "proud and happy" D) owner of a Marantz 10b/7c/8b combo.

 

[AudioClassics1]

The "glossy eyed lady" is Sandy. She is still the person that winds all of the transformers. I believe is very close if not more than 40 years there! She should be all of our best friend because she is doing one of the most critical procedures in the making of a McIntosh unit. She is a very nice person and I always say hi to her when there for a tour. She is one of numerous stories of employee dedication that McIntosh could tell.

A great video that really give a complete story of the design concept behind the McIntosh units.

 

[chuckworkb]

I'm guessing you are referring to my post. If so:

He didn't say anything in it that "makes me proud". I just said I enjoyed the video.

I think William may have been saying it made him proud. Maybe I'm wrong, maybe William will chime in.

 

[chuckworkb]

The "glossy eyed lady" is Sandy. She is still the person that winds all of the transformers. I believe is very close if not more than 40 years there! She should be all of our best friend because she is doing one of the most critical procedures in the making of a McIntosh unit. She is a very nice person and I always say hi to her when there for a tour. She is one of numerous stories of employee dedication that McIntosh could tell.

A great video that really give a complete story of the design concept behind the McIntosh units.

It looks like she is saying to herself, ahhh, I have work to do here guys.
I remember seeing her when we had the tour.

 

[62caddy]

The "glossy eyed lady" is Sandy. She is still the person that winds all of the transformers. I believe is very close if not more than 40 years there! She should be all of our best friend because she is doing one of the most critical procedures in the making of a McIntosh unit. She is a very nice person and I always say hi to her when there for a tour. She is one of numerous stories of employee dedication that McIntosh could tell.

A great video that really give a complete story of the design concept behind the McIntosh units.

I'll bet she has a lot of great stories.

Ryan - are there any videos of Frank McIntosh that you know of?

 

[AudioClassics1]

No videos yet of Frank McIntosh but if anyone will find one...it will be us!

 

[kevzep]

The "glossy eyed lady" is Sandy. She is still the person that winds all of the transformers. I believe is very close if not more than 40 years there! She should be all of our best friend because she is doing one of the most critical procedures in the making of a McIntosh unit. She is a very nice person and I always say hi to her when there for a tour. She is one of numerous stories of employee dedication that McIntosh could tell.

A great video that really give a complete story of the design concept behind the McIntosh units.

Wow, thats a long time, and a lot of experience gained, yeah, I bet she would have seen a lot in the last 40 years.......
Very interesting.....

 

[mdewire]

Wow Gordon Gow was one really great electrical engineer. He really understood amplifiers and coupling transformers. No wonder McIntosh products are so good. I just wish I could have met the guy, with someone like him you just sit and listen and open up your mind.

 

[william.keith]

I'm guessing you are referring to my post.

Hardly, I was referring to the technical explanation given by Gow of the unity couple design. I am proud to have owned and enjoyed McIntosh since 1968 starting with the MC2105 and C26, and MR71.

You are on your own.

 

[Wayniac]

Thanks for posting. I love these types of technical descriptions. Has anyone come across anything similar for a complete McIntosh amplifier...written or otherwise?


Sent from my iPhone using Tapatalk.

 

[62caddy]

Thanks for posting. I love these types of technical descriptions. Has anyone come across anything similar for a complete McIntosh amplifier...written or otherwise?

A thorough technical description of the Unity Coupled Circuit had been originally published in Audio Engineering December 1949 issue - and the pages of the magazine have been reproduced in in the McIntosh book For Love of Music, along with all advertising copy as it originally appeared.

A condensed description appears here-

http://www.roger-russell.com/mccontest.htm

 

[william.keith]

Thanks for posting. I love these types of technical descriptions. Has anyone come across anything similar for a complete McIntosh amplifier...written or otherwise?


Sent from my iPhone using Tapatalk.

The technical paper by Sidney Corderman on using output transformers in transistor amplifiers should be of interest to you.

 

[jimimac]

Ron Evans our V.P. of Engineering Technically knows the most about autoformers obviously. It is way over my head. I am just A production worker. The book (For The Love of Music) is way full of info though!!!