Vintage Tube & Vintage FET Microphone PCB Kit For DIY & New D7 Custom Capsule

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Hi Poctop,
How did you choose the 0.32H choke for the 269 / 49 PSUs? I usually think of them being higher, 5-10H.
 
dmp said:
Hi Poctop,
How did you choose the 0.32H choke for the 269 / 49 PSUs? I usually think of them being higher, 5-10H.

1- Avaliability
2-Henry

2- DC current Max  : In General the higher inductance the lower DC Max, since i had in mind the psu to be solid with most tube configuration possible as
even for other mics some are more energy-Vorous  Heater current than others.

3- Footprints

4-Price

So basically  A trade-Off on all those things,

Be noted that the 500mH form this series will work fine , but at a cetain point filtering a already clean DC output Voltage is pointless.
dont forget the RC filetering Stage also Work well on this,

here is a quote from
http://prorecordingworkshop.lefora.com/topic/11780711/Chokes-in-Neumann-PSU


the choke is actually optional on the 2469 passive psu
you can replace it with a 10 ohm Resistor , I never had the time to actually try it with and without and compare on my list tough, 

Hope this helps,
Best,
dAN,


 
shipped this morning , To USA and Australia,
Best,  :)
daN,
 
wave said:
Dany WILL take over the world!

maybe not  ;)
do i have to be worried of  Austin Powers now  ;) and mini-me.

;D ;D ;D
 
Hi Dan

Ordered 2 packs of u87 PCBs with correspondent styroflex's the 9th, got them today. Impressive!
 
dribro said:
Hi Dan

Ordered 2 packs of u87 PCBs with correspondent styroflex's the 9th, got them today. Impressive!

you are welcome, happy build,
BEst,
DAN
 
D-Elam 251E with True Pattern Switching on PSU , I had to terminate what I started,  

this was a very fun build.  Specially the Point to Point HZ bridge,  half PCb/half PTP for the Optimal Results and Maximum Fun

Enjoy,

more Info soon,

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I needed to get rid of a pair of stamping siders with the aid of a metal cutter and a file  :p
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Best,  :)
DAN,
 
Ela M 251 stock out

Thanks ,
Best,
Dan,
 
Shipped today to US and Estonia  :)
Best,
DAn,
 
shipped to US today .,
BEst,  :)
dan,
 
Shipped to US today,

Best,  :)
Dan,
dD
 

D-47FET    3 Railing system (AMI-IOaudio) microphone body type.
  i am working with Oliver to have the tube Cut , i am expecting a prototype soon, will see ehat happens.

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Best,
DAN ,
 
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