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Felix-A. Gravel's Discussions

McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer

Started this discussion. Last reply by Felix-A. Gravel Sep 29, 2023. 6 Replies

Hi there folks,About 1.5 year ago I took a little break in restoring my McMurdo-Silver Masterpiece VI because it is missing its T10 audio interstage transformer. Thanks to members of this forum, I…Continue

E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone

Started this discussion. Last reply by Felix-A. Gravel Oct 10, 2022. 3 Replies

Hi there, E.H. Scott peeps! My collection is growing, and last May I had the opportunity to purchase an FM Philarmonic from Mr. King. I bought this as a project for much, much later. See, my vision…Continue

One-Owner McMurdo-Silver Masterpiece VI found in Canada

Started this discussion. Last reply by palegreenthumb Sep 23, 2021. 15 Replies

Hi folks! A few weeks ago I was forwarded an unusual email by a fellow S.Q.C.R.A. member. A certain gentleman up in Picton Ontario was looking to pass on his father's beloved Masterpiece VI to an…Continue

McMurdo Silver 15/17 Volume Pot Issues

Started this discussion. Last reply by David C. Poland Oct 6, 2019. 3 Replies

Hi folks.It seems my newly acquired McMurdo Silver 15-17 (  …Continue

 

Felix-A. Gravel's Page

Latest Activity

Felix-A. Gravel replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"Said transformer is missing."
Sep 29, 2023
Stephen Scheel replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"could you just send the original transformer to get rewound?   That way he should have all information he needs to create a new core?"
Sep 29, 2023
Robert Meader replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"Looking at your diagram on the top winding connect the joint of  the bottom 100k resistor and transformer winding to the feedback network.  On the bottom winding connect the joint of the top 100k resistor and transformer winding to the…"
Sep 27, 2023
Alex R. Whitaker replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"Felix, I have two MPVIs......I just saw that the interstage transformer is on the amp chassis.  I'll get to one of the amp chassis that I have, and get you the physical dimensions of the transformer.  I don't know how hard the…"
Sep 27, 2023
Felix-A. Gravel replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"Good morning, Bob! Just to make sure, is that what you had in mind? Might be a good avenue if you think it's going to function just as well as the original. What value capacitor would you use?"
Sep 27, 2023
Robert Meader replied to Felix-A. Gravel's discussion McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer
"Actually you can buy a new replacement of the shelf.  As to which one depends on how the secondary winding is connected.  If the two secondaries connect to a common point ie ground or negative supply then a standard one winding primary and…"
Sep 26, 2023
Felix-A. Gravel posted a discussion

McMurdo-Silver MP6 Custom T10 Audio Interstage Transformer

Hi there folks,About 1.5 year ago I took a little break in restoring my McMurdo-Silver Masterpiece VI because it is missing its T10 audio interstage transformer. Thanks to members of this forum, I now have most of the specifications I need in order to find a sub. Its primary winding measures 1500ohms, each of the secondaries measure 4000 ohms, and the ratio between the primary and each secondary is about 1:2. Using this data, a friend of mine tried to wind a custom transformer from a random…See More
Sep 26, 2023
Bill Liers liked Felix-A. Gravel's discussion E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone
Oct 11, 2022
Felix-A. Gravel replied to Felix-A. Gravel's discussion E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone
"Hi! I just wanted to update you on the tuning shaft, which I found thanks to Bill Liers. We met up in Kutztown, and I got to installing it yesterday. It's a small step in the restoration, but I'm happy to check it off the list. "
Oct 10, 2022
Scott Seickel replied to Felix-A. Gravel's discussion E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone
"Later AM sets had a support plate added behind the shaft, but the hole spacing and standoff height is the same.  Yes, an AM one should work fine for this fellow.   "
Sep 11, 2022
Brad Winder replied to Felix-A. Gravel's discussion E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone
"Felix, Will a AM Philharmonic shaft be the same?"
Sep 11, 2022
Felix-A. Gravel posted a discussion

E.H. Scott FM Philarmonic parts needed - Tuning shaft & 15'' paper cone

Hi there, E.H. Scott peeps! My collection is growing, and last May I had the opportunity to purchase an FM Philarmonic from Mr. King. I bought this as a project for much, much later. See, my vision is to someday own an FM Philarmonic, inside a Laureate Grande cabinet.Now, I don't think I'll find a Laureate Grande anytime soon. Mind you, I'm still trying to purchase my first home. However, there are smaller bits and pieces I can try to source in the meantime, such as the tuning shaft, a complete…See More
Sep 10, 2022
palegreenthumb replied to Felix-A. Gravel's discussion One-Owner McMurdo-Silver Masterpiece VI found in Canada
"Nice find Felix, congratulations!"
Sep 23, 2021
Robert Feenstra replied to Felix-A. Gravel's discussion One-Owner McMurdo-Silver Masterpiece VI found in Canada
"Next time you're in Michigan...."
Sep 16, 2021
Felix-A. Gravel replied to Felix-A. Gravel's discussion One-Owner McMurdo-Silver Masterpiece VI found in Canada
"Good morning Robert, Sounds like I owe you a round of beer or ten. Thank you SO much for taking the time. I'll put this information to good use. Cheers from Quebec city, Felix"
Sep 16, 2021
Robert Feenstra replied to Felix-A. Gravel's discussion One-Owner McMurdo-Silver Masterpiece VI found in Canada
"I hooked up 15.26 volts AC to the primary, and got 30.5 volts on both secondary's.  1:2 ratio."
Sep 15, 2021

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