McMurdo-Silver Masterpiece Sets - EH Scott Radio Enthusiasts2024-03-29T15:29:23Zhttps://ehscott.ning.com/forum/topics/mcmurdo-silver-masterpiece-sets?commentId=3925821%3AComment%3A30493&feed=yes&xn_auth=noThere are different versions…tag:ehscott.ning.com,2012-07-28:3925821:Comment:304962012-07-28T04:16:07.724ZThomas Dayhttps://ehscott.ning.com/profile/ThomasDay
<p>There are different versions of the Jensen A12 speaker. I have a pair from a Hammond organ tone cabinet. The speakers have the same value of voice coil, but different values of field coil resistance. One has a 250 ohm field coil and the other has a 5000 ohm field. In the Hammond cabinets the 250 ohm coil provides the bias for the output tubes and the 5000 ohm coil is across the B+ to ground. These were used in cabinets with either quad 2A3 output tubes or with quad 6V6 output…</p>
<p>There are different versions of the Jensen A12 speaker. I have a pair from a Hammond organ tone cabinet. The speakers have the same value of voice coil, but different values of field coil resistance. One has a 250 ohm field coil and the other has a 5000 ohm field. In the Hammond cabinets the 250 ohm coil provides the bias for the output tubes and the 5000 ohm coil is across the B+ to ground. These were used in cabinets with either quad 2A3 output tubes or with quad 6V6 output tubes.</p>
<p>Thom</p> That's another beautiful Silv…tag:ehscott.ning.com,2012-07-28:3925821:Comment:306822012-07-28T01:21:34.355ZRon Ramirezhttps://ehscott.ning.com/profile/RonRamirez
<p>That's another beautiful Silver cabinet, Bruce.</p>
<p>Leonid - thanks for the link showing the MP V with two A-12 speakers. I see a tweeter also. I can't help but wonder if someone made reproductions of the Jensen decal that was originally on the back of the 18 inch speaker, and put these on the backs of all three speakers in that photo? I agree that those speakers appear to have been added later.</p>
<p>That's another beautiful Silver cabinet, Bruce.</p>
<p>Leonid - thanks for the link showing the MP V with two A-12 speakers. I see a tweeter also. I can't help but wonder if someone made reproductions of the Jensen decal that was originally on the back of the 18 inch speaker, and put these on the backs of all three speakers in that photo? I agree that those speakers appear to have been added later.</p> Very nice radio.
Is shadowmet…tag:ehscott.ning.com,2012-07-26:3925821:Comment:304932012-07-26T05:45:30.034ZLeonid Solovievhttps://ehscott.ning.com/profile/LeonidSoloviev
<p>Very nice radio.</p>
<p>Is shadowmeter working OK?</p>
<p>Here are the pictures of MPV with two A-12 and a tweeter:</p>
<p><a href="http://www.radiomuseum.org/r/mcmurdo_masterpiece_v.html">http://www.radiomuseum.org/r/mcmurdo_masterpiece_v.html</a></p>
<p>But looking at the color of the board with speakers, it is a new addition to the readio,I assume.</p>
<p>Very nice radio.</p>
<p>Is shadowmeter working OK?</p>
<p>Here are the pictures of MPV with two A-12 and a tweeter:</p>
<p><a href="http://www.radiomuseum.org/r/mcmurdo_masterpiece_v.html">http://www.radiomuseum.org/r/mcmurdo_masterpiece_v.html</a></p>
<p>But looking at the color of the board with speakers, it is a new addition to the readio,I assume.</p> That is interesting about the…tag:ehscott.ning.com,2012-07-25:3925821:Comment:306722012-07-25T23:46:36.653ZY2K Brucehttps://ehscott.ning.com/profile/Bruce
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2681789379?profile=original" target="_self"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2681789379?profile=RESIZE_1024x1024" width="721"></img></a> That is interesting about the 2-A-12 Jensen's.</p>
<p>I have an uber rare MP IV cabinet, the Mayfair, and the original 2 chassis, and it has the provisions for 2 A-12 pedistal speakers and 2 optional tweeters.</p>
<p>According to my brochures, the std speaker set up was 1 A-12 and 1 tweeter but my set has the optional doubles of both with wood speaker fixtures inside. The…</p>
<p><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/2681789379?profile=original"><img width="721" class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2681789379?profile=RESIZE_1024x1024" width="721"/></a>That is interesting about the 2-A-12 Jensen's.</p>
<p>I have an uber rare MP IV cabinet, the Mayfair, and the original 2 chassis, and it has the provisions for 2 A-12 pedistal speakers and 2 optional tweeters.</p>
<p>According to my brochures, the std speaker set up was 1 A-12 and 1 tweeter but my set has the optional doubles of both with wood speaker fixtures inside. The original speakers were missing when I got this set but I had a pair of A-12's and tweeters that my radio guy is trying to put together for me.<a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/2771119120?profile=original"><img width="721" class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2771119120?profile=RESIZE_1024x1024" width="721"/></a><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/2771118927?profile=original"><img width="721" class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2771118927?profile=RESIZE_1024x1024" width="721"/></a><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/2771119454?profile=original"><img width="721" class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2771119454?profile=RESIZE_1024x1024" width="721"/></a></p> By the way, about the speaker…tag:ehscott.ning.com,2012-07-24:3925821:Comment:306632012-07-24T18:59:21.163ZLeonid Solovievhttps://ehscott.ning.com/profile/LeonidSoloviev
<p>By the way, about the speaker for McMurdo MPV and VI. If I remember correctly, two A-12 Jensen speakers make an exact match to one 18" Jensen speaker, if to connect voice coils in parallel and field coils in series. I do remember I saw such radio with two A-12 speakers.</p>
<p>By the way, about the speaker for McMurdo MPV and VI. If I remember correctly, two A-12 Jensen speakers make an exact match to one 18" Jensen speaker, if to connect voice coils in parallel and field coils in series. I do remember I saw such radio with two A-12 speakers.</p> Sam
Thanks. Sorry, but this o…tag:ehscott.ning.com,2012-07-24:3925821:Comment:302582012-07-24T13:40:19.049ZRon Ramirezhttps://ehscott.ning.com/profile/RonRamirez
<p>Sam</p>
<p>Thanks. Sorry, but this one will not be for sale. I have long admired these sets, and the time was right for me to finally acquire one. This will be a keeper.</p>
<p>It is the only McMurdo Silver I have, and will probably be the only one I will have. I've been primarily a Philco collector for 22 years now, as you probably know.</p>
<p>Be patient, keep the $$$$ in the bank, and one will come your way.</p>
<p>Sam</p>
<p>Thanks. Sorry, but this one will not be for sale. I have long admired these sets, and the time was right for me to finally acquire one. This will be a keeper.</p>
<p>It is the only McMurdo Silver I have, and will probably be the only one I will have. I've been primarily a Philco collector for 22 years now, as you probably know.</p>
<p>Be patient, keep the $$$$ in the bank, and one will come your way.</p> Congrats Ron. You did the rig…tag:ehscott.ning.com,2012-07-24:3925821:Comment:304832012-07-24T13:16:43.786ZSam Samuelianhttps://ehscott.ning.com/profile/SamSamuelian
<p>Congrats Ron. You did the right thing for all concerned! I hope you enjoy the new set and maybe you can find the appropriate 18 inch speaker without spending a fortune. If you want to sell it at that point, I think I'd be interested. I have no McMurdo-Silver sets but came close recently. Do you have any others?</p>
<p>Congrats Ron. You did the right thing for all concerned! I hope you enjoy the new set and maybe you can find the appropriate 18 inch speaker without spending a fortune. If you want to sell it at that point, I think I'd be interested. I have no McMurdo-Silver sets but came close recently. Do you have any others?</p> Well, I won the McMurdo Silve…tag:ehscott.ning.com,2012-07-24:3925821:Comment:302572012-07-24T00:29:15.606ZRon Ramirezhttps://ehscott.ning.com/profile/RonRamirez
<p>Well, I won the McMurdo Silver Masterpiece VI at the Estes auction. I found the correct, original amp/PS myself the night before the auction - it had been placed with a Scott chassis! - and alerted a member of the auction crew to the discrepancy. He kindly put the Silver amp in the Clifton cabinet and pulled the oddball PS out, putting it with the Scott chassis.</p>
<p><br/>I was told the speaker I have, which was inside the Clifton cabinet, is from a Scott Philharmonic.</p>
<p>Well, I won the McMurdo Silver Masterpiece VI at the Estes auction. I found the correct, original amp/PS myself the night before the auction - it had been placed with a Scott chassis! - and alerted a member of the auction crew to the discrepancy. He kindly put the Silver amp in the Clifton cabinet and pulled the oddball PS out, putting it with the Scott chassis.</p>
<p><br/>I was told the speaker I have, which was inside the Clifton cabinet, is from a Scott Philharmonic.</p> I heard the Silver at the upc…tag:ehscott.ning.com,2012-07-20:3925821:Comment:302392012-07-20T01:16:33.622ZRon Ramirezhttps://ehscott.ning.com/profile/RonRamirez
<p>I heard the Silver at the upcoming Estes auction is missing the original speaker, but has a 15 inch Scott speaker instead...and (as of last week) they had yet to find the amp/power supply chassis so this may be just a tuner, a Clifton cabinet, and an (incorrect) speaker.</p>
<p>I heard the Silver at the upcoming Estes auction is missing the original speaker, but has a 15 inch Scott speaker instead...and (as of last week) they had yet to find the amp/power supply chassis so this may be just a tuner, a Clifton cabinet, and an (incorrect) speaker.</p> Sam,
The V & VI are both…tag:ehscott.ning.com,2012-07-16:3925821:Comment:303602012-07-16T22:34:08.843ZBill Liershttps://ehscott.ning.com/profile/BillLiers
<p>Sam,</p>
<p>The V & VI are both super radios. I have a VI and it's one of my favorites. The 18" in the Clifton was an early attempt at building an acoustically correct cabinet with a vented back and padded interior. The bass is impressive for it's time. Be careful with the restoration though, it's not simple and I've found factory errors in mine which prevented it from ever sounding like it does now.</p>
<p> </p>
<p>good luck, Bill</p>
<p>Sam,</p>
<p>The V & VI are both super radios. I have a VI and it's one of my favorites. The 18" in the Clifton was an early attempt at building an acoustically correct cabinet with a vented back and padded interior. The bass is impressive for it's time. Be careful with the restoration though, it's not simple and I've found factory errors in mine which prevented it from ever sounding like it does now.</p>
<p> </p>
<p>good luck, Bill</p>