tonycamp

Re: Official 251 point to point on Acrylic build and support thread
« Reply #41 on: May 05, 2016, 05:26:45 PM »
Hey Nelly,
 I do have a few set left if you interested shoot me an email at [email protected]    ;)
There's a great new release dare I say masterpiece album "Animus" by an Australian band Mayfair kytes that exclusively used the 251 clone for main vocal duties check it out!

https://mayfairkytes.bandcamp.com/album/animus


I'd like to hear some samples naked, and out of the context of these folks mixes, they are absurdly bright and sibby to my ears, i like the way you put that mic together, very cool!

OPR

Re: Official 251 point to point on Acrylic build and support thread
« Reply #42 on: May 12, 2016, 09:28:44 PM »
Glad you like the Build Tony!
I think the brightness is a production choice thing particularly on the first track as these mics are as generally smooth as butter:) That particular mic had a Tim Campbell capsule from about 2 or so years ago and was the brightest capsule of the three I owned at the time but still a nice sounding capsule.

 I'm now making my own multi-chambered Ck12 copy which I hope to offer the community at some point.I'll post some solo samples soon.:)

micaddict

Re: Official 251 point to point on Acrylic build and support thread
« Reply #43 on: May 13, 2016, 03:26:50 AM »
Quote
I'm now making my own multi-chambered Ck12 copy which I hope to offer the community at some point.I'll post some solo samples soon.:)

... he said on the side ...


Re: Official 251 point to point on Acrylic build and support thread
« Reply #45 on: December 23, 2016, 02:57:01 PM »
I know that not much has been going on here but I really like this build and have made a couple already.  They sound great!  I thought I would share my tube socket holder "invention" since I could not for the life of me find the "original" rubber mount anywhere out there.  I also think it falls apart too quickly.  So I was drinking a glass of Coca-Cola and came up with this idea:


Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #46 on: January 03, 2017, 02:17:48 AM »
Hello,

Where does R10 (100k) go? The 251 schematics I have been looking at have this resistor between C2 (100pF) and the plate voltage, but the layout (very helpful by the way!) does not show R10. Also, is there noticeable sonic benefit to using a 10nF film cap for C3 instead of the electrolytic?

Thanks!

Paul

Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #47 on: January 03, 2017, 02:54:24 AM »
Also, is the 3.3uF cap using in place of the zeners? I just wanted to be sure I was reading that correctly.

Thanks!

Paul


Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #49 on: January 04, 2017, 12:18:08 AM »
Thanks! I scare easily...


Paul


Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #50 on: January 04, 2017, 12:36:34 AM »
Sorry, one more question if I may. I looked through the build photos you so graciously posted, but I didn't see you use zeners with the output cap. Did I miss it? I just want to make sure I have them oriented correctly. The 251E schematic shows them used with the relay polar pattern switching, so I didn't know how that would translate to this version without relays. I hope the answer isn't directly in front of me, making me look sillier than I am.

Thanks!

Paul


Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #52 on: January 04, 2017, 02:22:27 AM »
Copy. I thought that they were located in the PSU, but I wasn't sure.

Thanks again!

Paul

Potato Cakes

Re: Official 251 point to point on Acrylic build and support thread
« Reply #53 on: March 12, 2017, 10:49:24 AM »
Just built a point to point 251 using this layout, a Tim Campbell CT12, a Mundorf 2.2uF cap for C4, and the PSU from a D-251 PCB set. It worked perfectly the first time (except I did have the pattern connections in the PSU backwards) and it sounds very, very nice. The only down side is that I built it for someone else!

Thanks for your help and offering these resources.

Thanks!

Paul