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Author Topic: AKG Active Project part 3  (Read 74695 times)

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Offline newplanet7

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Re: AKG Active Project part 3
« Reply #60 on: January 06, 2009, 08:58:02 PM »
It looks as if that big bulky box below isn't necessity right.
ust need something to house that board in and a longer lead out from box to cap via 4-conductor
cable it seems ???
Interesting find.
+t


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Offline illconditioned

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Re: AKG Active Project part 3
« Reply #61 on: January 06, 2009, 09:39:58 PM »
^^^ Yes, interesting find!

There are schematics there as well, but I could not find anything with a FET in it.  I think it was just schematics for the power supply.

As I've said earlier, the circuit is not hard, even with batteries.  The problem is getting "collettes" with a good fit to the capsule.  That is, mechanical problems...

  Richard
Please DO NOT mail me with tech questions.  I will try to answer in the forums when I get a chance.  Thanks.

Sample recordings at: http://www.soundmann.com.

Offline willndmb

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Re: AKG Active Project part 3
« Reply #62 on: January 07, 2009, 10:49:15 AM »
is it just me or is there seem like no way that the cap is connected?
the threads on the cap need to go "into" the body or whatever you use
in the picture it seems like the cap goes down to the AKG name Branding and stops i don't see anything "over" the threads holding it in place
so i assume the threads are actually built into the silver box and the cap "drops" into it
« Last Edit: January 07, 2009, 10:51:27 AM by willndmb »
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline illconditioned

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Re: AKG Active Project part 3
« Reply #63 on: January 07, 2009, 12:15:27 PM »
is it just me or is there seem like no way that the cap is connected?
the threads on the cap need to go "into" the body or whatever you use
in the picture it seems like the cap goes down to the AKG name Branding and stops i don't see anything "over" the threads holding it in place
so i assume the threads are actually built into the silver box and the cap "drops" into it
My guess is the cap screws into the metal at the top.
The center pin is (probably) soldered or clipped, and the wire runs down to the board. On the board there must be a FET input stage, and some Gigohm resistors...

  Richard
Please DO NOT mail me with tech questions.  I will try to answer in the forums when I get a chance.  Thanks.

Sample recordings at: http://www.soundmann.com.

J.T.L

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Re: AKG Active Project part 3
« Reply #64 on: January 07, 2009, 02:16:17 PM »
The problem is getting "collettes" with a good fit to the capsule.

Hence your love of electrical tape. ;D I do miss the poorlyconditioned rig pics and hand-drawn schematics.

Offline fozzy

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Re: AKG Active Project part 3
« Reply #65 on: January 07, 2009, 05:09:32 PM »
30minute 3d model.  3/4" brass rod as stock.

I have some Ideas for the center pin and making the internal electronics serviceable. 

Is it possible to cram the necessary electronics into this type of model, and how long would they need to be?

I am not a 3d/cad artist, first time i have touched a cad app in 10+ years

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Offline illconditioned

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Re: AKG Active Project part 3
« Reply #66 on: January 07, 2009, 05:22:01 PM »
30minute 3d model.  3/4" brass rod as stock.

I have some Ideas for the center pin and making the internal electronics serviceable. 

Is it possible to cram the necessary electronics into this type of model, and how long would they need to be?

I am not a 3d/cad artist, first time i have touched a cad app in 10+ years

Looks good.  IIRC you'll need an m19 thread to mate with the capsule.  But you probably already know that.  Also, the material should be brass, to match the capsule (avoid corrosion or any other problems when different materials meet).  Contacting the center pin should not be hard, but it is a mechanical problem, hence out of my domain.

You don't need much space at all in the collette.  Just enough for one transistor and two resistors.  I would say 1/2 to 3/4" beyond the capsule (measured inside). 

If anyone builds a pair of these, and is willing to give them to me (to keep), I will happily experiment and make my design and results public.  I've decided at this point I don't want to put any more money into this, but I'm happy to experiment in exchange for parts!

  Richard
« Last Edit: January 07, 2009, 05:24:19 PM by illconditioned »
Please DO NOT mail me with tech questions.  I will try to answer in the forums when I get a chance.  Thanks.

Sample recordings at: http://www.soundmann.com.

Offline OFOTD

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Re: AKG Active Project part 3
« Reply #67 on: January 07, 2009, 05:37:36 PM »
If anyone builds a pair of these, and is willing to give them to me (to keep), I will happily experiment and make my design and results public.  I've decided at this point I don't want to put any more money into this, but I'm happy to experiment in exchange for parts!

Richard this confuses me.  If i'm reading this right you'll share your thoughts or info IF someone is willing to give you, to keep, the hardware.

You are always the first one to ask builders for information, part #'s and the like.  Then the first one to complain that people aren't open enough.  The fivefishdiy preamp as an example instantly comes to mind.   

It is just this kind of attitude and b.s. like the statement above that has helped to keep this type of project from happening.  You give me first and then.....     :banging head:

 

Offline jeromejello

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Re: AKG Active Project part 3
« Reply #68 on: January 07, 2009, 05:57:19 PM »
If anyone builds a pair of these, and is willing to give them to me (to keep), I will happily experiment and make my design and results public.  I've decided at this point I don't want to put any more money into this, but I'm happy to experiment in exchange for parts!

Richard this confuses me.  If i'm reading this right you'll share your thoughts or info IF someone is willing to give you, to keep, the hardware.

You are always the first one to ask builders for information, part #'s and the like.  Then the first one to complain that people aren't open enough.  The fivefishdiy preamp as an example instantly comes to mind.   

It is just this kind of attitude and b.s. like the statement above that has helped to keep this type of project from happening.  You give me first and then.....     :banging head:

 


i didnt get that vibe at all from richard.  i think he was saying that if someone supplied him the colletes he would tinker with it and release the plans.  sure, he would get a pair of the collettes out of it, but if the collettes were able to be manufactured in the future (for a reasonable fee) & there was a set of plans available to build the actives... awesome.

/although i would have to find some one to put it together for me
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Offline willndmb

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Re: AKG Active Project part 3
« Reply #69 on: January 07, 2009, 07:52:30 PM »
If anyone builds a pair of these, and is willing to give them to me (to keep), I will happily experiment and make my design and results public.  I've decided at this point I don't want to put any more money into this, but I'm happy to experiment in exchange for parts!

Richard this confuses me.  If i'm reading this right you'll share your thoughts or info IF someone is willing to give you, to keep, the hardware.

You are always the first one to ask builders for information, part #'s and the like.  Then the first one to complain that people aren't open enough.  The fivefishdiy preamp as an example instantly comes to mind.   

It is just this kind of attitude and b.s. like the statement above that has helped to keep this type of project from happening.  You give me first and then.....     :banging head:

 


i didnt get that vibe at all from richard.  i think he was saying that if someone supplied him the colletes he would tinker with it and release the plans.  sure, he would get a pair of the collettes out of it, but if the collettes were able to be manufactured in the future (for a reasonable fee) & there was a set of plans available to build the actives... awesome.

/although i would have to find some one to put it together for me
i got the same impression
not that he wanted anything for free but that he doesn't have the knowledge or skill or whatever to make the collettes but has ability for the rest of the project
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline illconditioned

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Re: AKG Active Project part 3
« Reply #70 on: January 07, 2009, 08:02:46 PM »
If anyone builds a pair of these, and is willing to give them to me (to keep), I will happily experiment and make my design and results public.  I've decided at this point I don't want to put any more money into this, but I'm happy to experiment in exchange for parts!

Richard this confuses me.  If i'm reading this right you'll share your thoughts or info IF someone is willing to give you, to keep, the hardware.

You are always the first one to ask builders for information, part #'s and the like.  Then the first one to complain that people aren't open enough.  The fivefishdiy preamp as an example instantly comes to mind.   

It is just this kind of attitude and b.s. like the statement above that has helped to keep this type of project from happening.  You give me first and then.....     :banging head:

 

Hey, dude.

I posted a chalkboard diagram of my project long ago!  I've also posted chalkboard diagrams for battery operated preamps and battery boxes.

What I'm saying is that if someone wants me to tweak and prove my design, they can give me the hardware.  I just don't want to sink any more money into this.  Also, this is a bit of challenge... for both of us.  If you produce the mechanical parts, I'll produce the (hopefully) working electronics...

  Richard
« Last Edit: January 07, 2009, 08:05:26 PM by illconditioned »
Please DO NOT mail me with tech questions.  I will try to answer in the forums when I get a chance.  Thanks.

Sample recordings at: http://www.soundmann.com.

Offline tgakidis

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Re: AKG Active Project part 3
« Reply #71 on: January 09, 2009, 08:53:21 AM »
Has anyone ever tried running the mk46/ck_x caps with the 480's?  I know people say it doesn't work, but I also heard people say that the 480's wouldn't work with a60 rings & the early ck caps.  I have run 480/a60/ck1 several times now and have been very pleased with the results.  Does it have something to do with the transformers?
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Offline willndmb

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Re: AKG Active Project part 3
« Reply #72 on: January 09, 2009, 11:26:26 AM »
Has anyone ever tried running the mk46/ck_x caps with the 480's?  I know people say it doesn't work, but I also heard people say that the 480's wouldn't work with a60 rings & the early ck caps.  I have run 480/a60/ck1 several times now and have been very pleased with the results.  Does it have something to do with the transformers?
great question
because until you proved the 480 would work with ck caps i too was under the impression it wouldn't work from reading it over and over here at ts
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline tgakidis

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Re: AKG Active Project part 3
« Reply #73 on: January 09, 2009, 11:39:20 AM »
Has anyone ever tried running the mk46/ck_x caps with the 480's?  I know people say it doesn't work, but I also heard people say that the 480's wouldn't work with a60 rings & the early ck caps.  I have run 480/a60/ck1 several times now and have been very pleased with the results.  Does it have something to do with the transformers?
great question
because until you proved the 480 would work with ck caps i too was under the impression it wouldn't work from reading it over and over here at ts

Well I do have acres to the a mk46/ck_x, but I don't wanna run the risk of killing my 480's
GAKables: Custom XLR, Digi & Batt Cables http://taperssection.com/index.php?topic=133186.0

Mics: Telefunken RFT AR-51 / Telefunken ELA M 260 (tk60,tk61,tk62) / Telefunken M60 / AKG c426b / AKG c414 xls / AKG c414 B-XLS / AKG c460b (ck61,ck62,ck63,ck69,a60,ck1,ck22,ck3,ck8,Blue B6) / nBob AKG Actives>PFA/ nBob AKG Actives>nBox Platinum / Naiant AKG Actives>PFA / AT853 w/ 4.7k Mod (Card,Omni,Sub)
Pre-Amps: Sonosax SX-M2 / Lunated V3
Recs: Sound Devices MixPre-10ii, MixPre-10T, MixPre-6ii, MixPre-6 / Sony PCM-M10 / Roland R-07

My Recordings: https://archive.org/search.php?query=taper%3A%28Gakidis%29&sort=-date

Offline TNJazz

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Re: AKG Active Project part 3
« Reply #74 on: January 10, 2009, 02:25:27 AM »
Has anyone ever tried running the mk46/ck_x caps with the 480's?  I know people say it doesn't work, but I also heard people say that the 480's wouldn't work with a60 rings & the early ck caps.  I have run 480/a60/ck1 several times now and have been very pleased with the results.  Does it have something to do with the transformers?

The mk46 cables have an extra "pin" connector where they attach to the bodies.  If you look at the 460 and the 480 bodies, I seem to recall the 460's have a ring to make contact with this pin.  The 480's don't have that, which is why the actives don't work with them.
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