Neumann KM84 DIY Body & PCB kit – CLOSED
« on: February 25, 2018, 09:51:01 PM »


DIY KM84 kits - SOLD OUT!

Parts included in kit:
– MAIKU Cardioid SDC Capsule head
– Raw brass body-tube
– Polished and nickel-plated capsule head and connector housing
– XLR connector
– KM84 DIY PCB designed by Graeme Woller

Parts needed to complete build:
– Components outlined in Mouser BOM
– Cinemag CM-5722 transformer

That's it  ;)

NB: all the parts are compatible with the Beesneez Lulu and many other SDC microphones built in standard China kits (capsule head, body, PCB etc.)

Pricing incl. all charges and shipping:
EU/CH – €122,00
Rest of world – €128,00

If ordering more than one kit, only add €100 for every extra unit.

How to order:
Send your Paypal payment directly to [email protected] with your name and shipping address.
Sale is on FCFS basis, no holds or reservations.

Also happy to organise a groupbuy for the Cinemag transformers. Just let me know!

*** As always, please send EUR payments only – no CHF ***
« Last Edit: August 14, 2018, 02:32:44 PM by Banzai »


Neumann KM84 DIY Body & PCB kit – Only 50 kits available @ €100!!
« Reply #1 on: February 25, 2018, 10:16:52 PM »
PCB Schematic:
https://www.dropbox.com/sh/s2pfjwo7bb3a0zr/AABnKkG5hzBzXf-Ha7VlZ7Kaa?dl=0

Mouser BOM:
 https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=f5036488e2

NB: 588-MOX-200001007JE can be replaced with 279-RGP0207CHK1G0
Both are in BOM, please pick the one you prefer.
« Last Edit: July 20, 2018, 01:45:16 PM by Banzai »

Re: Neumann KM84 DIY Body & PCB kit – Only 50 kits available @ €100!!!
« Reply #2 on: February 28, 2018, 01:50:39 PM »
...
« Last Edit: February 28, 2018, 09:16:50 PM by Banzai »

TillM

Re: Neumann KM84 DIY Body & PCB kit – Only 50 kits available @ €100!!!
« Reply #3 on: February 28, 2018, 02:22:35 PM »
Hi Mike,
Payment send for one.
I’m interessted in a groupbuy for the cinemag too

Re: Neumann KM84 DIY Body & PCB kit – Only 50 kits available @ €100!!!
« Reply #4 on: February 28, 2018, 02:54:55 PM »
Hi Mike,
Payment send for one.
I’m interessted in a groupbuy for the cinemag too

Thanks!  :D

Ericbazaar

Re: Neumann KM84 DIY Body & PCB kit – Only 50 kits available @ €100!!!
« Reply #5 on: February 28, 2018, 04:18:30 PM »
Hello Banzai,

Can you tell me more about the micbody? Internal diameter and length?
More Infos about the capsule would be nice.
Is it possible to fit a submini tube inside?

Best

TillM

Hello Banzai,

Can you tell me more about the micbody? Internal diameter and length?
More Infos about the capsule would be nice.
Is it possible to fit a submini tube inside?

Best
I know Banzai could give you better informations but as far as I know, if they have the same diameter like the beesneez lulu a submini tube should work. Ben use the same body for his tube mic small condenser mics.

Vac11

Is there compatibility between this body and the geniue Neumann KM84 capsule?

Hello Banzai,

Can you tell me more about the micbody? Internal diameter and length?
More Infos about the capsule would be nice.
Is it possible to fit a submini tube inside?

Best

Original Neumann is 21 x 110mm
This body is 22 x 130mm. It's short and fat, very nice looking mic.

Capsule is based on KK84. Same materials (mylar/gold)

No problem for sub-mini. Plenty of space inside (ø19mm)

Is there compatibility between this body and the geniue Neumann KM84 capsule?

The connecting pin is different and the Neumann is slightly smaller in diameter. But unless you have one lying around, it's not really worth it: new KK84's are €535. Might as well buy a complete vintage KM84  ;)


midwayfair

Aw man, This is a great deal and we really don't have many options for these, and I even have the transformer Ina drawer upstairs, but I don't think I can swing this while in classes.

Is this likely to be a one-time thing, or do you plan on doing runs every once in a while?
I'm Jon. Myself's music and things I make: jonpattonmusic.com. My band: www.midwayfair.org. [Disclaimer: PCBs of guitar pedals I've designed are sold by Madbean, 1776 Effects, and JMK PCBs.]

TillM

PAyment sent for a second one.  ;)
I will try it, really like the sound of the KM84, will see how it sounds compared to each other.

PAyment sent for a second one.  ;)
I will try it, really like the sound of the KM84, will see how it sounds compared to each other.

Thanks x2  :D


Aw man, This is a great deal and we really don't have many options for these, and I even have the transformer Ina drawer upstairs, but I don't think I can swing this while in classes.

Is this likely to be a one-time thing, or do you plan on doing runs every once in a while?

For the moment it's just a one time thing. With Graeme we wanted to create a high quality project that's really easy to build and accessible to anyone with a soldering iron. This might be the simplest project on Groupdiy: fill the board, set bias, screw on the capsule and you're done!

The metalwork is also a custom run made for this project, the only off the shelf parts being the springy bit and the connector housing. We left the body tube raw on purpose, so everyone can decide whether they want to leave as is, polish, beadblast, powdercoat, spray paint, or plate. Leaving as is, it should get a nice patina finish after a while (you can accelerate the process by beadblasting).

Potato Cakes

I would like four of these. PM sent.

Thanks!

Paul

Potato Cakes

Payment sent for four (4) kits.

Thanks!

Paul

Ericbazaar

Money sent for two Kits. Will build nice little Tube Sticks  ::)

Thanks Mike for doing this!

midwayfair


For the moment it's just a one time thing.

Sigh ... time to see if I can move some guitar pedals on Craigslist then before these sell out. Or might just ask the wife for an indulgence :)
I'm Jon. Myself's music and things I make: jonpattonmusic.com. My band: www.midwayfair.org. [Disclaimer: PCBs of guitar pedals I've designed are sold by Madbean, 1776 Effects, and JMK PCBs.]

r2d2

Hi
Any info about capsule and rest of parts cost to complete the mic ?

Any sound sample like acoustic guitar and voice  recorded with a transparent preamp (as well) ?
And better more  some sound comparison with an original unit .

..... Cracking D.Vader Firewall ...  II-)

TillM

Hi
Any info about capsule and rest of parts cost to complete the mic ?

Any sound sample like acoustic guitar and voice  recorded with a transparent preamp (as well) ?
And better more  some sound comparison with an original unit .
this is a first time offer, so there will be no sound comparison at this time.
Anyway, Banzai uploaded a schematic and a BOM.
And as Banzai already said, the capsule is based on the KK84.

Payment sent for four (4) kits.

Thanks!

Paul
Money sent for two Kits. Will build nice little Tube Sticks  ::)

Thanks Mike for doing this!

Thanks!  :D

Hi
Any info about capsule and rest of parts cost to complete the mic ?

Everything is included except for parts listed in Mouser BOM and transformer