Owen Evans
70 posts
Aug 03, 2015
8:37 AM
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I did some research and I can't find a listing ever for a JT 41. Here's the old catalog for reference:
http://www.preservationsound.com/wp-content/uploads/2012/07/Astatic_Catalog_197.pdf
Here's a JT-30 site run by KP Graham, which is exhaustive & has no mention of a JT 41:
http://www.jt30.com
And lastly, here's Dennis' site which is the an archive museum for these mics. I would ask Dennis as he's a knowledgeable resource for these items.
http://badassharmonica.com
Good luck & let us know what you find out please.
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Kingley
3900 posts
Aug 03, 2015
9:40 AM
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If i remember correctly JT-41 was a designation used only in Canada by Astatic and was only used on mics provided to the Canadian military. Other than that it's identical to a JT-30.
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TetonJohn
258 posts
Aug 03, 2015
9:50 AM
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I don't think you'll have an adequately tight cup holding it like that!
(Ain't I a riot?)
BTW, nice looking microphone; I hope the element sounds as good as the mike looks; personally I love the feel of a JT30-type shell.
Last Edited by TetonJohn on Aug 03, 2015 9:53 AM
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Harpaholic
720 posts
Aug 03, 2015
5:19 PM
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I've owned a JT40, and have seen a model 48W and a model 40 all three Youngstown, Ohio.
Ive also seen Canadian JT30's, but don't recall seeing a JT41 or a Canadian JT40.
From what I can see in the pic, it almost looks like someone stamped over the original stamp, but its hard to tell.
Last Edited by Harpaholic on Aug 03, 2015 5:27 PM
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1847
2637 posts
Aug 03, 2015
5:50 PM
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that is an extremely rare astatic only one was ever produced.
too bad they installed a volume pot and completely destroyed the value.
could of been worth a zillion dollars
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Bass410man
39 posts
Aug 04, 2015
9:21 AM
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"Nice, I gots me a Canadian Military mic! I didn't even know Canada had a military!"
Sounds to me like you are very un-educated, maybe living under a rock perhaps. Any mic should do you fine.
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Owen Evans
72 posts
Aug 04, 2015
8:46 PM
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No worries Lewinsky. Your handle should be the giveaway that you've got a sense of humour.
We Canadians will exonerate you for your humorous slip of the tongue. We say we're sorry for everything so, we're sorry for not letting you know about our military; who by the way, are flying sorties right beside our American allies as we speak so as to get rid of all the terrorists. I'm sorry you already knew that. I am thankful for the service our militaries provide so we can be free.
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Pistolcat
830 posts
Aug 10, 2015
3:57 AM
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When you say "louder" do you mean the volume on the mic? In that case it could be a too-low- resistance-in-the-pot-problem. I'm no expert but it's said that volume pot just becomes a on/off switch if the resistance is wrong... A lot of the guys here knows about this but you can also try to do a forum search.
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Pistolkatt - Pistolkatts youtube
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Greg Heumann
3076 posts
Aug 10, 2015
7:05 AM
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That's a problem with your amp. It is acting like you have a noise gating pedal in the chain. But I've had amps do this by themselves. Its usually minuscule corrosion at some connection, likely a tube socket. No sound, then you blow harder and the voltage increases - finally a little arc happens and you're back in business for a while.
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/Greg
BlowsMeAway Productions
See my Customer Mics album on Facebook
Bluestate on iTunes
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Kingley
3905 posts
Aug 10, 2015
11:25 AM
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Did Dennis get back to you with any more info on the mic?
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Greg Heumann
3077 posts
Aug 11, 2015
6:43 AM
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Hey, HL - I was unclear. I should have said "COULD be a problem with your amp." Because you have a new amp it is less suspect for sure. It can ALSO be a problem with the element. Sometimes the transfer of motion from the diaphragm to the pin that moves inside the coil (CM/CR) can get knocked out of alignment and will "hang up" against one of the sides. That can be repaired. Another failure mode is when the glue joint holding the pin to the diaphragm fails. Usually that causes the sound to drop out under strong pressure, not the other way around. A complete failure at that joint yields an element that makes noise when you physical handle it, but doesn't respond to sound via the diaphragm. Those failures CAN be repaired.
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***************************************************
/Greg
BlowsMeAway Productions
See my Customer Mics album on Facebook
Bluestate on iTunes
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NiteCrawler .
326 posts
Aug 11, 2015
11:22 AM
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@HL The MC 151 is a crystal element.If it is weak or failing I don,t believe there is much hope for it.As far as I know there is no way to bring the vintage crystal back.I have a few dead ones that I,ve accumulated through the yrs and they,re in my element graveyard.As Greg mentioned its a different story with a CM or a CR as the bobbins can be repaired and or rewound.Maybe I,m wrong but I,m pretty sure unless someone knows different.BTW I,m glad you had a CM for the shell at least you got something(a nice shell)for your purchase.
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