Today's Messages (OFF)
| Unanswered Messages (ON)
| Forum: Klaus Heyne's Mic Lab |
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| Topic: U47 Head - subtle differences? |
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| U47 Head - subtle differences? [message #362623] |
Wed, 06 August 2008 17:13 |
 Giles Jeremy
Messages: 24
Registered: October 2007 |
Member |
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Hi
I notice that the bottom ring of earlier U47 headgrilles had a height of 16.5mm (?) but some later ones gew to 18mm - which continued with the U47fet.
Anyone know why and when this subtle change was made?
Having just read this question back to myself I realise that I have no life....... 
Giles
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| | Topic: Opinions About the Milab DC-196? |
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| Opinions About the Milab DC-196? [message #359912] |
Sun, 27 July 2008 00:49 |
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 Barry Hufker
Messages: 6212
Registered: October 2004
Location: between heaven and hell |
Platinum Member |
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Milab has always struck me as a "second tier" microphone manufacturer. But I've read several very positive reviews of the DC196. Has anyone had any direct experience with one (or two) DC196s? If so, did you like them? Would you prefer something else to them?
Thanks!
Barry
http://www.hufkerrecording.com
Torture “is basically subject to perception,” CIA counterterrorism lawyer Jonathan Fredman told a group of military and intelligence officials gathered at the U.S.-run detention camp in Cuba on Oct. 2, 2002, according to minutes of the meeting. “If the detainee dies, you’re doing it wrong.”
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| | Topic: U47 Tube socket picture..... |
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| U47 Tube socket picture..... [message #357728] |
Thu, 17 July 2008 17:01 |
Giles Jeremy
Messages: 24
Registered: October 2007 |
Member |
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Hi
Does anyone have a picture of the tube socket from a U47 without the rubber band or with the rubber band out of the way?
I realise that the orginal Preh sockets are no-longer available so I would like to adapt one of the standard circular ones.
Many thanks in advance.
Giles
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| | Topic: Neumann U47 Large Badge, Chrome Top, Long Body: How Many ? |
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 Neumann U47 Large Badge, Chrome Top, Long Body: How Many ? [message #351936] |
Tue, 24 June 2008 16:27 |
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Microphone Online Museum
Messages: 1
Registered: June 2008
Location: Berlin, GERMANY |
Welcome |
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I am a serious microphone collector from Berlin, Germany.
Since 14 years I collect vintage microphones from all over the world - as well as pictures, ads, schematics etc. of them.
In the meantime I have approximately 500 exponats in my own museum: such as tube condenser, condenser, carbon, ribbon as well as dynamic moving coil microphones - dated from 1910 up to now.
I am NOT merely interested in "still working" or high quality items, but also in RARE and UNUSUAL microphones.
The most important thrill for ME is the design as well as the history of "my eyecatchers". In MY opinion it is VERY important to preserve the microphones from beeing forgotten ...
I would be very proud to share pictures with you, because of the fact that I got so much information about vintage microphones from you, that I want to thank you by publishing MY pictures.
Perhaps you know, how many of these large badge as well as chrome plated versions have been made? The Telefunken U47 bears a chrome plated Neumann logo; even the Georg Neumann company here in Berlin does not know.
If you are interested in more detailed information you can visit me at the "MOM" aka the Microphone Online Museum.
Note: I will tell you ASAP at which website you can "visit my microphone online museum"
In a few days ( I hope so ) you can download more pictures and get detailed information concerning the following microphones:
- Neumann U47 tube condenser,
- Neumann U47 N tube condenser,
- Telefunken U47 M tube condenser ( NOT (!) Telefunken USA ),
- Neumann CMV3 tube condenser, torpedo-head (!)
- Telefunken Ela M301/2 tube condenser, omni capsule,
- Telefunken Ela M301/2 tube condenser, cardioid capsule,
- RFT / Funkwerk Leipzig CM7151 tube condenser, cardiod capsule,
- RFT / Funkwerk Leipzig CV7049 tube condenser, omni capsule,
- Neumann Gefell CMV563 tube condensers,
- Neumann Gefell CMV551 tube condenser,
- Neumann Gefell M582 tube condensers,
- Thiele M1 tube condenser,
- Thiele M4 tube condenser,
- Telefunken Ela M25 ribbon,
- Siemens & Halske SM3 ribbon ( aka Telefunken M25 ),
- Telefunken D19 B dynamic,
- Telefunken D19 Bk Hi dynamic,
- Telefunken D19 C dynamic,
- Philips EV7014/22 aka AKG D19 C dynamic,
- Telefunken Ela M410 dynamic,
- Telefunken Ela M411 dynamic,
- AKG D12 dynamic,
- AKG D14 dynamic,
- AKG D15 dynamic,
- AKG D17 dynamic,
- BEYER M19 b dynamic,
- BEYER M20 b dynamic,
- Philips EL6030 dynamic etc. etc. etc.
just to name a few items of my private collection and to explain, what I am planning to do the next months ...
Thanks, Al
The attached picture shows the following microphones:
a) Neumann U47 with M7 & Telefunken VF14 M pentode, SN #234, large badge - chrome top, long body version
b) Neumann U47 N with K47 & RCA 13CW4 nuvistor tube, SN #81, large badge - chrome top, long body version
c) Telefunken U47 M with M7 & Telefunken VF14 pentode, SN #374, chrome plated Neumann logo, matte finish, long body version
=> All of them including original cables & PSU's
Once upon a time I thought: "It's good to have 1 microphone." 2 days later I thought: "It's better to have a good pair of microphones!" In the meantime I know: "It's great to have your own microphone museum!"
=> I'll inform you ASAP, at which website you can "visit" my microphone online museum aka the MOM
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| | Topic: Fraud Or Stupidity? |
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| Fraud Or Stupidity? [message #351771] |
Mon, 23 June 2008 23:15 |
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Klaus Heyne
Messages: 2144
Registered: April 2004 |
Platinum Member |
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This from our friends at eBay (Item number: 330245915931):
| Quote: |
TUBE FOR NEAUMANN U47
MODEL EF 14
NORMALY NEUMANN U47 USE A VF14 TUBE BUT THE EF14 IS THE SAME
APART FROM ONE VOLTAGE THERE ARE NO DIFFERENS
IT IS EASY TO CHANGE THAT VOLTAGE IN THE POWER SUPPLY
IT´S LOOK AS NEW, BUT I CAN´T TEST IT, SO SOLD AS IS
THIS AUCTION IS FOR ONE TUBE, BUT I HAVE FOUR FOR SALE
BUYER PAY FOR SHIPPING
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So what is this? Some old East German dog? Just change that ONE voltage in the power supply for me, would you? Make that baby SING!
Or- maybe a little too much reading on eBay by the seller about 'EF14" and getting some ideas: why not jump on the wagon, play dumb, and cash in? Others have said the same, after all, and on the INTERNET! His back is covered.
Just as life itself: sold as is, and could be dropping dead tomorrow!
Attachment: 16a3_2.JPG
(Size: 10.97KB, Downloaded 545 time(s))
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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| | Topic: premier micropones |
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| premier micropones [message #341871] |
Thu, 15 May 2008 21:36 |
Edvaard
Messages: 262
Registered: April 2008
Location: Atlanta |
Active Member |
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No Message Body
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| | Topic: Microtech Gefell UM75 Grill - How To Access? |
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| Microtech Gefell UM75 Grill - How To Access? [message #340584] |
Mon, 12 May 2008 07:13 |
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ratite
Messages: 219
Registered: April 2004
Location: Hokkaido,Japan |
Active Member |
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I have managed to put a nasty dint (about 5-6mm deep) into the front of my UM75's grill.
It looks significant enough to affect performance, particularly given how small the total grill area is. I have opened the mic before but never succeeded in gaining access to the capsule as I can't find any easy or obvious way to separate the grill.
I don't know about U57 (or the 92.1s) but the 75 has a removeable head a l the 47.
It has one screw in the underside of the head piece but removing this doesn't seem to do anything.
As I could probably push the grill back with my thumb, I'd rather try this than bother with sending it back to Gefell.
Anyone know the trick? As an aside, of course, I'd like to have a gander at the M7 contained therein. I haven't worked out how to get at the cap in the UM900 either, maybe MGeffel doesn't want me to.....
Richard Horner
Unaffiliated knob twiddler.
"Nietzsche played the piano endlessly in his eleven years of madness.Once,at least,with his elbows."
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| | Topic: Portable recording set-up |
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| Portable recording set-up [message #338085] |
Wed, 30 April 2008 22:59 |
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Mike Cleaver
Messages: 291
Registered: August 2004
Location: Vancouver, BC, Canada |
Active Member |
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Some time ago, we were discussing USB solutions for portable recording.
Deciding it was time to update my portable recording rig, used mainly for interviews for radio, I bought a 12" Acer Aspire with 2g ram running (gasp!) Windows Vista.
It has a 160 gig hard drive and I'm using Adobe Audition 3.
I also bought the CEntrance MicPort which streets for $125 - $150.
It's a mic pre/sound card combo that plugs directly into your mic and through a USB cable into the computer.
It doesn't require you to load any software.
I use Shure E3's for monitoring.
It also provides enough 48v to properly run my U87 with a switch to turn it off when it's not needed for dynamic or ribbon mics.
And yes, it does have enough clean gain for ribbons, at least for spoken word.
The quality is amazing and the entire rig with power supply, mic suspension and collapse able tripod mic stand fits in a fairly small briefcase.
Being an old analogue guy, I was hesitant to go the digital input route but I'm delighted with the way it works.
I have no affiliation with Acer, Adobe or CEntrance.
I'm just happy to have found a quality affordable and compact portable recording system that fits in one small flat briefcase
Mike Cleaver Broadcast Services
Vancouver, BC, Canada
Broadcast Studio Design and Consulting
Voiceover Talent
Newscaster
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| | Topic: Jensen Power Supply for Neumann Microphones |
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| Jensen Power Supply for Neumann Microphones [message #331439] |
Mon, 07 April 2008 18:44 |
walth
Messages: 8
Registered: March 2007
Location: San Diego |
Member |
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Hello,
Can anyone tell about their bad or good experiences with Neumann Microphones powered by Jensen Power Supplies. Someone recently offered me a M-269C with a Jensen power supply at a very good price. i just don't want to have any issues with it. it would probably be expensive to buy an older power supply for the unit.
thanks in advance.
walter
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| | Topic: C414 EB Problem |
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| C414 EB Problem [message #330723] |
Fri, 04 April 2008 18:50 |
Steve Hudson
Messages: 676
Registered: November 2004
Location: Austin, Texas USofA |
Gold Member |
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I bought a C414 EB and the rear side of the capsule has significantly lower output in figure eight than the front side. Cardioid, Hypercard and Omni sound fine. What's the likely problem, and can AKG fix it?
Also, I'm having trouble putting the metal housing back on the mic. It slid right off after removing the four base screws, but it won't go the last 1/2" to secure it where the bottom of the grilles are. Any tips?
"The music business is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There's also a negative side."
- Hunter S. Thompson
http://www.myspace.com/steventoddhudson
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| | Topic: U47fet transformer |
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| U47fet transformer [message #329664] |
Tue, 01 April 2008 07:40 |
OlalaMusic
Messages: 1
Registered: April 2008
Location: Taiwan |
Welcome |
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want to experiment making my own transformer
want to know the transformer specs of U47fet (90331)
turn ratio, i/o impedance etc
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| | Topic: Find Detailed Information On Many Condenser Mic Topics HERE... |
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| Find Detailed Information On Many Condenser Mic Topics HERE... [message #323420] |
Mon, 10 March 2008 22:22 |
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Klaus Heyne
Messages: 2144
Registered: April 2004 |
Platinum Member |
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...click here:
http://recforums.prosoundweb.com/index.php/f/46/318/
* to hear an NPR interview about vintage mics
* read about basic maintenance
* purchasing and caring for vintage and new condenser mics
* read about specific mics, tubes, capsules, storage, authentication, theft, or general use...
all of that can be found there!
Happy reading!
Klaus Heyne
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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| | Topic: Wanted: Pictures Of Your Vintage Mics! |
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| Wanted: Pictures Of Your Vintage Mics! [message #313616] |
Fri, 08 February 2008 15:07 |
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Klaus Heyne
Messages: 2144
Registered: April 2004 |
Platinum Member |
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As some of you may already know, I am in the middle of writing a hand book on vintage mics for the publisher Hal Leonard. The deadline for my submission is very soon.
To make the book solid, I still need some clear shots of vintage condenser, ribbon, and dynamic mics. Not only pictures of the "Big Five", but also of lesser known, equally intriguing models- anything from CMV3 and other pre-war Neumanns to KM5x or AKG 60/61 or early C2, to any of the Art-Deco Schoeps post-war models to Sony C37s to ....?
Also, shots of some prototypes would be very interesting (how about that 'Maihak'-badged 1952 M49?)
If you have any of these mics in poor, excellent or even pristine condition, and you also have a fairly hi-res digital camera, please contact me at: klausheyne@yahoo.com with the subject line "Vintage Pix", and I will respond with more details. The mics don;t need to be in museum-quality condition.
As to reimbursement, I cannot pay you for your kindness. The only pay-off will be that, if any of your pictures will be chosen to appear in, or on the cover of the book, full credits and thank you's will be extended (and, if the stars align, maybe your pictures will grace this tome for a long while-hopefully for more than just the first edition...)
It certainly won't hurt the value of your pride and joy if you can say to a collector "as seen in the Vintage Microphone Handbook"!
Thanks in advance,
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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| | Topic: Does anyone have an M49 component layout? |
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| | Topic: KM130 problem |
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| KM130 problem [message #304626] |
Fri, 11 January 2008 18:52 |
locosoundman
Messages: 65
Registered: May 2004
Location: New York, NY a wonderful ... |
Member |
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Hello all:
There is a thin metal mesh over the grill of the AK30 capsule. Last evening as I was retrieving my mic's, I noticed this mesh on one of them had been crumpled and pulled away from the rim of the capsule.
Will this effect the sound of the microphone and/or how could it degrade the performance of the microphone? Any idea on what it would cost to fix? I tried calling Neumann USA in CT, but no one has returned my message.
Unfortunately, I don't have a picture to post at the moment. I will try to get one if this would be helpful.
Thanks for any insight you may have.
What does this little red button do?
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| | Topic: Lies on EBay: Will It Ever End? |
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| Lies on EBay: Will It Ever End? [message #289655] |
Fri, 16 November 2007 01:31 |
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Klaus Heyne
Messages: 2144
Registered: April 2004 |
Platinum Member |
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http://cgi.ebay.com/Telefunken-UF14-UF-14-tube-for-Neumann-U 47-MIC_W0QQitemZ180178325973QQihZ008QQcategoryZ67816QQssPage NameZWDVWQQrdZ1QQcmdZViewItem
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1 Telefunken UF14 tube
This tube is electrically 100% identical to the VF 14 used in Neumann microphones except for a lower filament voltage (25 Volts instead of 60 Volts). This does not affect the sound, nor should any modification be done to the audio circuit.
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100% identical to VF14? Does NOT affect the sound?
If that were true, then why does the UF14 only cost 1/20th of a good VF14?
| Quote: |
The UF14 can be applied in Neumann microphones insteadt of the VF14 when a minor modification is carried out, i.e. 1 resistor should be inserted in the filament circuit to lower the filament voltage to the correct value for the UF 14.
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Really? Anybody who has ever tried to keep the mic's amp cavity from overheating with that extra heat machine of a resistor added may tell a different story. Then watch with horror as the plate voltage starts drifting downward from that extra heat, right into the noisy basement...
Folks, be forewarned!
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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(as I am attempting to build an M49 'copy'!), does anyone have a layout as there seems to be a lot of stuff cleverly crammed in there.