John Warren Posted December 25, 2022 Share Posted December 25, 2022 For those of you that have a distressed MC2100 or just want to spruce up the one you have, I've got one that's in need of repair and will document what's done to it here: MC2100 restoration (northreadingeng.com) Will provide part numbers of the hardware as I go. 6 Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted December 26, 2022 Share Posted December 26, 2022 Nice, will follow the thread. Quote Link to comment Share on other sites More sharing options...
jwc Posted December 28, 2022 Share Posted December 28, 2022 Nice. Will follow Quote Link to comment Share on other sites More sharing options...
mark1101 Posted December 29, 2022 Share Posted December 29, 2022 John updated two MC2100s for me a few years ago. Both still excellent. Quote Link to comment Share on other sites More sharing options...
John Warren Posted December 29, 2022 Author Share Posted December 29, 2022 Good to hear! I took a year or so off servicing the old McIntosh hardware, tube and solid state to focus on the day job (which is also more engineering). In my little world, getting to a point where I'll soon retire from all day jobs to focus on other things (getting old!) and going into retirement spending time working audio hardware has lots of appeal. Good health into your 60s and 70s is the exception not to be taken for granted and extreme stress (like working in an engineering startup as a key contributor) debits health and beats up the immune system. Sure, you can eat right like low carb. exercise and maintain a 23 BMI but the termites and Maxwell Demons are always nearby. The amp I'm working on in the link above was missing a few parts, the owner wants it restored to "like new" condition. I have some pretty scarce parts on hand including autotransfomers, power supply transformers, meters and even two 2100 stainless chassis, all in basically like new condition. I managed to obtain this hardware whilst working at a McIntosh service facility in the late 70s!!! There's also a method that allows the chassis to be polished to a mirror finish without taking the lettering off. It's a secret. 2 Quote Link to comment Share on other sites More sharing options...
DizRotus Posted December 29, 2022 Share Posted December 29, 2022 Now that I can reflect on it, I too will follow your interesting restoration. 1 Quote Link to comment Share on other sites More sharing options...
henry4841 Posted December 29, 2022 Share Posted December 29, 2022 55 minutes ago, John Warren said: There's also a method that allows the chassis to be polished to a mirror finish without taking the lettering off. It's a secret. Come on, you know members here will not tell. Quote Link to comment Share on other sites More sharing options...
Marvel Posted December 29, 2022 Share Posted December 29, 2022 7 hours ago, DizRotus said: Now that I can reflect on it, I too will follow your interesting restoration. I see what you did there,,, 1 Quote Link to comment Share on other sites More sharing options...
DizRotus Posted December 29, 2022 Share Posted December 29, 2022 I was surprised to see a McIntosh branded audio system in a Jeep ad. Is McIntosh featured in any other Stellantis/Chrysler brands? My first awareness of a name brand car audio system was by Bose in a mid-80s Corvette. Now branded OEM systems are common. Quote Link to comment Share on other sites More sharing options...
OO1 Posted December 29, 2022 Share Posted December 29, 2022 cant wait , tx for detailing the repair , Quote Link to comment Share on other sites More sharing options...
mark1101 Posted December 30, 2022 Share Posted December 30, 2022 John, Nice start to your North Reading Engineering forum, by the way.............where you are showing this MC-2100 rebuild. Your HH Scott 299C / LK-72 unit for sale appears to be an awesome recreation of that unit. The finished product and the test data you present are very impressive. Someone will enjoy that for a long time. Quote Link to comment Share on other sites More sharing options...
John Warren Posted December 30, 2022 Author Share Posted December 30, 2022 3 hours ago, mark1101 said: Your HH Scott 299C / LK-72 unit for sale appears to be an awesome recreation of that unit. The finished product and the test data you present are very impressive. Someone will enjoy that for a long time. Thank you! I made four amps and sold three. It would be good if it had a wood-grained base that would make it aesthetically pleasing. Might make it easier to sell too. I can fabricate one if necessary. 1 Quote Link to comment Share on other sites More sharing options...
DirtyErnie Posted January 20, 2023 Share Posted January 20, 2023 Love your work, Mr. Warren. Thank you for sharing. Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 22, 2023 Author Share Posted January 22, 2023 On 1/20/2023 at 3:20 PM, DirtyErnie said: Love your work, Mr. Warren. Thank you for sharing. Nice of you to say, thank you! Quote Link to comment Share on other sites More sharing options...
The Dude Posted January 23, 2023 Share Posted January 23, 2023 Nice job, you once helped me get a 2100 operational. Wish I had that and my 2505, both are great sounding amps. 1 Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 25, 2023 Author Share Posted January 25, 2023 On 12/29/2022 at 8:52 AM, DizRotus said: Now that I can reflect on it, I too will follow your interesting restoration. Told you so. The lettering is fine too. 4 Quote Link to comment Share on other sites More sharing options...
mark1101 Posted February 8, 2023 Share Posted February 8, 2023 Very nice work to completion as usual. Thanks for sharing. Quote Link to comment Share on other sites More sharing options...
The Dude Posted February 8, 2023 Share Posted February 8, 2023 Outstanding, Quote Link to comment Share on other sites More sharing options...
John Warren Posted February 9, 2023 Author Share Posted February 9, 2023 16 hours ago, The Dude said: Outstanding, Thank you Gents! This unit went to a customer in Kentucky. 4 Quote Link to comment Share on other sites More sharing options...
Ale Posted February 11, 2023 Share Posted February 11, 2023 Very well done. Quote Link to comment Share on other sites More sharing options...
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