Topic: AKG Active Project part 4

[leehookem]

Starting to feel a little tingly inside.

[Chuck]

Starting to feel a little tingly inside.

Yeah, I've gone through that a few times over the years. lol... I'm hoping this time it's the real thing. 

[Hypnocracy]

Two units in aluminum will do . . . they will go to Chuck for evaluation once stuffed

Händel Messiah - Hallelujah Chorus just popped into my head....

 

[willndmb]

ok i talked to a buddy of mine about the colette and he is going to show the pictures to his brother who will know about making them himself or who can make them
he doesn't seem to think they would cost a lot overall based on the pictures in the thread
so hopefully in a day or so i'll hear from him and we will have another poss source

[Hypnocracy]

Those of us with manual lathes...here is a jpeg with dimensions...



Definitely could make the sides straight at 21mm for my use...

[illconditioned]

ok i talked to a buddy of mine about the colette and he is going to show the pictures to his brother who will know about making them himself or who can make them
he doesn't seem to think they would cost a lot overall based on the pictures in the thread
so hopefully in a day or so i'll hear from him and we will have another poss source

This all sounds great, but we need to make sure Jon's parts fit in.  Buy two or something, ship them to Jon to get "installed", then have him return them to you.

I'm waiting on the sidelines here, willing to pay upfront for a pair of collettes with parts in them.  I'll build my own supply.

  Richard

[willndmb]

ok i talked to a buddy of mine about the colette and he is going to show the pictures to his brother who will know about making them himself or who can make them
he doesn't seem to think they would cost a lot overall based on the pictures in the thread
so hopefully in a day or so i'll hear from him and we will have another poss source

This all sounds great, but we need to make sure Jon's parts fit in.  Buy two or something, ship them to Jon to get "installed", then have him return them to you.

I'm waiting on the sidelines here, willing to pay upfront for a pair of collettes with parts in them.  I'll build my own supply.

  Richard

yes, you are right

i sent him jons ems files too so they can see them
basically the first set was just seeing if they can make them or would point me to the people who can and a ballpark cost
then if it sounds good i can get a couple made and/or have exact measurements to go from

[ts]

That back chamfer doesn't look good at all, I don't think it was that was originally.  Anyway, not an issue with straight sides.

I should begin cutting the straight colette this weekend, monday at the latest. As soon as I can get two cut I will ship to you for stuffing. They will be aluminum. Once fitting and testing are done I will proceed with making them out of brass in house if only small quantities are needed on the manual lathe or farm it out if larger quantities are needed. Hopefully that price of 6 ea. from emachineshop is real. Keep fingers crossed.

[Chuck]

So, this is essentially what we are looking at for the first batch?

[GDfan]

This is great! I just got caught up on this thread, and I am very interested.

[willndmb]

which one is correct
top or bottom?

i have a buddy checking it out

[Hypnocracy]

Use Jons drawing or the Jpeg on this page...the first one I did was by deciphering various posts on the subject...I missed out on the change to 15mm that is a shelf for the FET board...I would also modify the plan to straight sides...

[willndmb]

Use Jons drawing or the Jpeg on this page...the first one I did was by deciphering various posts on the subject...I missed out on the change to 15mm that is a shelf for the FET board...I would also modify the plan to straight sides...

thansk i gave him the new version (jons)
along with straight sides at 21mm and 3/4-32 threads in brass
he is going to check it out and hopfully lmk something tues night when i see him
if all goes well i might get 2 done

[Myco]

Will the AKG box accept Gefell caps? If it helps at all, I have a JK Labs box for Gefells that accepts a single capsule, but feeds two XLR's out. I would let Jon take it for prototype engineering if he'd like.

[Hypnocracy]

myco not sure about what box you speak of....

The simplest answer is Gefells would need to be compatible with the Naiant Polarization voltage and a microphone housing to mate with the Gefell Capsule threads that holds a FET board...

Jon has Polarization voltage of 50v (IIRC) coming from at least two sources, a Naiant Pre or a PFA....in addtion to that there is a FET board in a microphone housing that contacts the capsule center contact with a leaf spring...at least for the AKG setup