neumann v475 pimping ...

[[silent:arts]]

don't change any cap value, they are fine in the B & C version.
the cap change suggestions in this thread have been for the A version.

I'll order one of them next week (payday)

it is EUR 5,- for the POSPSU PCB + shipping 
if you want to etch yourself: home-etch single layer version

 

[Autophase]

Thanks again for all your advice, ill be in touch next week.

 

[Autophase]

Just out of interest, what exactly is inside the 4 metal cans on the 475, I'm assuming thats what makes the 475 so special?

 

[[silent:arts]]

Just out of interest, what exactly is inside the 4 metal cans on the 475, I'm assuming thats what makes the 475 so special?

tee ;D ;D ;D

those are transformers. and yes, they are part of the design.

 

[Autophase]

Could someone advise me on recapping the V475 please, am I right in thinking there are only 6 electrolytics that need replacing on the 475?
C7, C107,C6, C106, C10, C110, C5, C105 - have i missed any electrolytics there?
C5 and C105 look like i would need to remove the turret board to get to them, something I'm not totally confident with yet, any suggestions?
Also, should a replace the 2 adjustable capacitors at top corners of the board or will they be ok?

Thanks

 

[Autophase]

hey guys, I hate to double post, but could anyone help me with my question above?

Thanks

 

[radiance]

Maybe post a pic of the thingy, showwing all caps clearly...don't have one in front of me so for example the turret board question is hard to answer...

 

[Autophase]

cheers mate, will do when i get home.
Ive PM'd volker the question but no replay, just a busy guy i suspect.

 

[[silent:arts]]

Could someone advise me on recapping the V475 please, am I right in thinking there are only 6 electrolytics that need replacing on the 475?

yes - in your V475-2C
(always good to state the exact model)

C7, C107,C6, C106, C10, C110, C5, C105 - have i missed any electrolytics there?

no

C5 and C105 look like i would need to remove the turret board to get to them, something I'm not totally confident with yet, any suggestions?

try if the old ones still work. C5 isn't in the audio path.

Also, should a replace the 2 adjustable capacitors at top corners of the board or will they be ok?

no

best
Volker

 

[Autophase]

Ah Volker, the main man in this area, thanks for your reply man!

Also, should a replace the 2 adjustable capacitors at top corners of the board or will they be ok?

no

No I shouldnt need to replace them or, no they wont be ok?

Sorry for so many questions, just a noob trying to get everything right.

 

[[silent:arts]]

no, you don't need to replace them.
trimmers are not electrolytic.
and those trimmers are not that important.

 

[Autophase]

you are a true gent volker.
Hopefully next time i post on this thread it will be with my working summing unit.

 

[Cosmonaut]

Possible dumb question...

Is there any possibility to use this type of summing cards, for a summing mixer with pan and fader level?

I have been looking for any threat dealing with pan and level, but most are passive or about the api summing cards.

great project!

 

[Autophase]

Hey guys, should I get switched or unswitched jack sockets for this project, or does it not matter?

 

[[silent:arts]]

Is there any possibility to use this type of summing cards, for a summing mixer with pan and fader level?

sure

Hey guys, should I get switched or unswitched jack sockets for this project, or does it not matter

it doesn't matter. look at my unit, I'm not aware of switched SubD25s ;D

 

[Autophase]

Is there any possibility to use this type of summing cards, for a summing mixer with pan and fader level?

sure

Hey guys, should I get switched or unswitched jack sockets for this project, or does it not matter

it doesn't matter. look at my unit, I'm not aware of switched SubD25s ;D

OK, thanks, I'm going with jacks anyway

 

[Polykobol]

Hello,

I have some API preamps and some V 475 and I would like to install them in a compact device.
It seems that you solution with the 475 is really good.
I would like to know if it could be possible to get a schematic of your design.
Would it be a solution to have 1 or 2 headphone devices as well?

Thanks in advance,

f

 

[[silent:arts]]

Hi,

it is neither my design nor do I have a schematic,
it is all from the V475 data sheet
you can find it here

for sure you can add some headphone amps at the output.

 

[obetech]

resistor values used for the inputs are 5k11 in 475-2 without any letter?

 

[[silent:arts]]

resistor values used for the inputs are 5k11 in 475-2 without any letter?

http://www.groupdiy.com/index.php?topic=13857.msg228723#msg228723