Ricardus

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3180 on: February 04, 2020, 06:43:37 PM »
Looks about like it should.   :)  I built two with the blue PCBs.
Audio mastering for hire..


Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3181 on: February 05, 2020, 02:26:07 AM »
Just built a second one just now. Only Figure 8 working perfectly. Cardioid and Omni sounds like there is a strong wind hitting them. Also, when biasing to 11.5, it capped out at around 11.42 and wouldn't go any higher. What the heck did I do wrong now?

Ryan

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3182 on: February 05, 2020, 11:22:09 AM »
Correct me if this sound totally wrong. But I switched out the switches in my last build just in case. In this build I reused to the switches because I thought there was no way that was whats wrong with it. I'm stuck in only figure 8 working again. The other two create loud wind noise. Could it be that it's a bad switch?

Ryan

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3183 on: February 05, 2020, 11:53:40 AM »
I tried my best to clean the switch PCB with the littel clearance I have and it got so much better. Still a little bit of wind static sound but it's almost gone. I think I need to really wash the switchboard. I already did. But I guess not well enough.

Ryan

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3184 on: February 05, 2020, 12:26:55 PM »
Okay, scrubbed it and it changed and the slowly went back to working perfectly in figure 8 and poorly in the other two positions. I think I can safely assume this is a switch problem? If i toggle the switch back and forth and turn it on, it will be weird in all three positions and then slowly go back to the way it's been. Where can I buy just a single 3 way switch?

Ryan

Ricardus

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3185 on: February 05, 2020, 06:55:10 PM »
Okay, scrubbed it and it changed and the slowly went back to working perfectly in figure 8 and poorly in the other two positions. I think I can safely assume this is a switch problem? If i toggle the switch back and forth and turn it on, it will be weird in all three positions and then slowly go back to the way it's been. Where can I buy just a single 3 way switch?

Ryan


Email him for a part number and then just look around.
Audio mastering for hire..

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3186 on: February 05, 2020, 07:43:52 PM »
Do you think a switch could do that? I just went to town on this PCB and it's still doing the same thing.

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3187 on: February 05, 2020, 08:23:28 PM »
Has anyone used the LA-8 Capsule from Luke Audio?  I had been planning on using the Heiserman Capsule but prices seem to have gone up recently so I'm checking alternatives.   Luke Audio mics have gotten good reviews and I just saw that he sells capsules for DIY builds.  Here's what he had told me about the LA-8 (K87 Style)
"Yes, we make a K87. 34mm , electrically isolated, 1 micron Mylar, platinum sputtered, and are $250.  All around a fantastic capsule, slightly brighter than what you may consider a vintage 87 but that depends on the circuit and how true it is as well"

I'm intrigued but I'm also going for as legit of a vintage 87 clone build that I can.  Has anyone used these or compared them with the Heiserman capsules?

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3188 on: February 05, 2020, 11:18:40 PM »
OH MY GOD. I'm so happy I could cry. I figured out what I did wrong. I took the capsule off to bias the fet with a scope and saw that I had the rear-side of the capsule reversed. It's working sooo good. I am so done building mics for a long time. Thank you all even if you didn't answer me. Getting my thoughts into the forum helped me through.

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3189 on: February 11, 2020, 03:55:21 PM »
Has anyone used the LA-8 Capsule from Luke Audio?  I had been planning on using the Heiserman Capsule but prices seem to have gone up recently so I'm checking alternatives.   Luke Audio mics have gotten good reviews and I just saw that he sells capsules for DIY builds.  Here's what he had told me about the LA-8 (K87 Style)
"Yes, we make a K87. 34mm , electrically isolated, 1 micron Mylar, platinum sputtered, and are $250.  All around a fantastic capsule, slightly brighter than what you may consider a vintage 87 but that depends on the circuit and how true it is as well"

I'm intrigued but I'm also going for as legit of a vintage 87 clone build that I can.  Has anyone used these or compared them with the Heiserman capsules?

That's really thin mylar. It'll probably be snappy and bright, which might be a cool of desired thing for you.  I didn't want a bright microphone. I went with the BeesNeez capsule and I've been having a field day since finishing my build.  Creamy, neutral, clear, and gorgeous are all words I would use to describe my build. I made another build with a cheap no-name Chinese 87-style capsule I had lying around  and I've had several blind tests with friends that are audio engineers. Everyone's favorite is the Beesneez. The cheap capsule has a high-end hairiness that is hard not to hear on vocals. It kind of accentuates sibilence and mouth sounds just a hair. On other sources they're almost matched.

Ryan


Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3190 on: February 13, 2020, 10:09:54 AM »
Had a blind shoot out with a Neumann TLM 103 and a modded Warm WA-47 yesterday. In both cases my engineer friend and I could tell which mic was which, and in both cases we preferred the sound of the 87. Very crazy! Really wish I had access to a  real U-87i to shoot out with.

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3191 on: March 08, 2020, 10:33:46 PM »
Hey! I wanted to post a quick sample of my 87 build. I've been worrying lately that is sounds darker than it should. I did my best not to get alcohol on the polystyrene's but I definitely got some on them. What do ya'll think. This was recorded 4 inches from the 12th fret, pointed straight on. No EQ or anything. Just Capi VP28. Appreciate any feedback.

https://soundcloud.com/user-368056288/d-u87-guitar-test




Delta Sigma

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3192 on: March 10, 2020, 10:33:13 AM »
Sounds good to me. It's been 20 years since I've tried a U87 on an acoustic but I did have a similar experience with my D67 on acoustic. Compared to my other builds (Elam 251, M49, U47) and my Beesneez Lulus, my 67 sounded too dark on my acoustic, epecially poointed at the 12th/14th fret area.

Using the 67 in the bridge area though, had a richness that the other mics did not.

Re: Neumann Vintage U87 Clone : Build Thread.
« Reply #3193 on: March 10, 2020, 11:29:16 AM »
Thank you for the feedback. I actually really like it with 80hz cut on the VP28 + a smidge of EQ on the highs. Very vintage sounding compared to the cheap condensers I have been using. I'd much rather low cut and adda little high than have to spend time cutting several weird ugly frequencies, so I'm happy. I just got in my head that it may be unusual.


 

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