C414 body

[micolas]

Question : I don't have the 40K2 resistor at R9 can i put the closest value i have ? (44k in hand actually)

39 k+1k2 (or trimpot?)

 

[garp]

no way to obtain perfect 40k2 adding resistors, is this value that important ?

 

[micolas]

no way to obtain perfect 40k2 adding resistors, is this value that important ?

can you post the schematic?

 

[Rob Flinn]

Does anyone know if it's still possible to buy the silver 414eb style bodies direct from China ? I did some emailing a month or so ago & never got a response.

 

[garp]

It is the P48 eb schematic posted here. I think bodies are still available direct at the factory i've got mine last month

 

[Rob Flinn]

It is the P48 eb schematic posted here. I think bodies are still available direct at the factory i've got mine last month

Who did you email please & roughly how much did they cost ?

 

[garp]

[email protected] ask jenny price was around 70 euros with case and shockmount

 

[Rob Flinn]

[email protected] ask jenny price was around 70 euros with case and shockmount

This is for the silver EB type ?

 

[garp]

yes

 

[micolas]

It is the P48 eb schematic posted here

Is this the scheme you are using?

 

[Recording Engineer]

It is the P48 eb schematic posted here. I think bodies are still available direct at the factory i've got mine last month

Do you know the inside, circuit-area dimensions?

 

[garp]

Ok i finally found 20k resistors in my garbage and reach 40k2, the build is now finished but i have a little problem ... the mic is perfectly working in omni mode but i have a noise in the background in all other directivities (noise is more in the lows) should i have to suspect the C13 C14 Styroflex capacitors ? or C12 in that case ? ...
Edit : C13 C14 and C12 changed, problem is gone , this build is very delicate. Very little space to mount components, hard to clean flux residue (very sensitive hi Z section ), if i had to complain on Vami's kit, it's on the tiny soldering pads employed for most of the components, making troubleshooting even harder. Otherwise this is a great project that deserves it's own thread IMHO. Lot of components options here (i employed mostly Tantalum capacitors like the original mic because i had them in my stock,, i also used 2N5484 in place of the 2SK and the PF in the bom (beware the legs and the bias resistors that need to be changed accordingly : R5 at 15k and R8 at 8k2 ) . This is by far the most complex and challenging build i ever made, i really don't recommand it to a neebie. Of course the incredible Moby's U54 and Beesneez capsule made a lot to the success of this (not cheap) project .

 

[garp]

And as always when doing one ... why not a pair ? Just in time for a european Jazz festivals summer Tour (Vienne Marciac and many more !)

 

[micolas]

And as always when doing one ... why not a pair ? Just in time for a european Jazz festivals summer Tour (Vienne Marciac and many more !)

A pair is always better than a single microphone.
C12 13 14 were the cause of the noise?

 

[garp]

One of them certainly, in doubt i changed them all , Styroflex are prone not to love heat and isopropyl alcool, and despite my precautions they surely suffered

 

[micolas]

One of them certainly, in doubt i changed them all , Styroflex are prone not to love heat and isopropyl alcool, and despite my precautions they surely suffered

The sensitivity of styroflex capacitors to excessive or prolonged heating and to contact with isopropyl alcohol is notorious

 

[Migs 31]

Does anyone know if it's still possible to buy the silver 414eb style bodies direct from China ? I did some emailing a month or so ago & never got a response.

YEAH!
@garp : “[email protected] ask jenny price ”.


Careful with structure ringing - due to metal body. I’m in Budapest for a show. These will go on Piano.
M

 

[garp]

I have damped them with rubber adhesive inside where it doesn't touch the electronics (on the sides along the bars ) and masking tape . Right from factory i was tempted to use them to replace the zildjian icebell on my drum kit !

 

[geekmacdaddy]

Got these done once again following HerbertR's wisdoms and reading as much here as possible. Styrene's and Tant's except the 2 .01uf's on the tx board. Couldn't source .022uf styrene so I went with .024uf. OPR capsule. This mic almost sounds like a tube mic...soft but it's punchier. I love it and can't wait to really use it. Wow Vami! Thank you for the great boards, and thank you Jenny for the outstanding bodies. Here's spoken audio sample;
https://www.dropbox.com/scl/fi/m3gh...mo-1.wav?rlkey=4c1dm9y735atoy7b6dt0nvny9&dl=0