RedNoise

Re: Studer 169 EQ in API 500 format
« Reply #100 on: July 15, 2010, 05:58:07 PM »
My bad , sorry for the stupid reply... :-[

Or add these :
http://www.banzaimusic.com/Axis-Converter-PL-63.html
http://www.banzaimusic.com/Axis-Converter-6-3mm-4mm.html

NB : plastic ones are on back order...
« Last Edit: July 15, 2010, 05:59:55 PM by RedNoise »
If your neighbour is hunger : don't give him fish , teach him how to fish ...
if you don't like it don't buy it ;-)  [Wolker Texas Ranger] ( ;-) )


skipwave

Re: Studer 169 EQ in API 500 format
« Reply #101 on: July 15, 2010, 06:00:31 PM »
Hmmm,



   you'll have to crane your necks, I rotated the images here and saved them, so gawd knows why they're topsy-turvy!



      AndyP

That's probably because Apple Preview does not actually re-save the file with image rotated, it just adds the orientation to the file header somehow. Incredibly annoying.

Download one of the lovely freeware image editor options for quick edits.
« Last Edit: July 15, 2010, 06:03:46 PM by skipwave »
Quote from: PRR
Now, maybe you don't, or shouldn't, grab the ribbon for far-harpsichord, nor the hot condenser for snare-kissing... yet often we do.

skipwave

Re: Studer 169 EQ in API 500 format
« Reply #102 on: July 15, 2010, 06:01:19 PM »
My bad , sorry for the stupid reply... :-[

Or add these :
http://www.banzaimusic.com/Axis-Converter-PL-63.html
http://www.banzaimusic.com/Axis-Converter-6-3mm-4mm.html

NB : plastic ones are on back order...

Now that's very cool. Thanks for adding!

I ended up ordering these for use with the audiomaintenance pots: https://www.mouser.com/Search/ProductDetail.aspx?R=C150H-09-R4virtualkey55000000virtualkey550-C150H09R4
« Last Edit: July 15, 2010, 06:03:20 PM by skipwave »
Quote from: PRR
Now, maybe you don't, or shouldn't, grab the ribbon for far-harpsichord, nor the hot condenser for snare-kissing... yet often we do.

RedNoise

Re: Studer 169 EQ in API 500 format
« Reply #103 on: July 15, 2010, 06:03:24 PM »
I have to say that ABS knobs (the cheapest) feel and look what they cost...not very well...
If your neighbour is hunger : don't give him fish , teach him how to fish ...
if you don't like it don't buy it ;-)  [Wolker Texas Ranger] ( ;-) )

strangeandbouncy

Re: Studer 169 EQ in API 500 format
« Reply #104 on: July 15, 2010, 06:08:35 PM »
Skipnoise,

   I rotated them in an certain application called Photoshop . . . . erm . . . . .should have worked methinks . . .
. . . . RUH ROH . . . . .

skipwave

Re: Studer 169 EQ in API 500 format
« Reply #105 on: July 15, 2010, 06:40:04 PM »
Hahaha! Skipnoise....... wish I'd thought of that.

Well that's awfully weird about Photostop not saving the rotated image.  ???
Quote from: PRR
Now, maybe you don't, or shouldn't, grab the ribbon for far-harpsichord, nor the hot condenser for snare-kissing... yet often we do.

strangeandbouncy

Re: Studer 169 EQ in API 500 format
« Reply #106 on: July 19, 2010, 10:03:10 AM »
Hi,


    question to Audiox, I notice that in the mastering version, the "feedback caps" at the input stage are 22pF, and the on the "filter" feedback is 10pF. On the 500 series version, the values are much higher, 47pF in each place. Is there a reason for this, and can I use the smaller settings, and hopefully increase bandwidth on the 500 series eq?



     KIndest regards,


         ANdyP
. . . . RUH ROH . . . . .

strangeandbouncy

Re: Studer 169 EQ in API 500 format
« Reply #107 on: July 22, 2010, 06:43:41 AM »
Bump . . .
. . . . RUH ROH . . . . .

dbeeson

Re: Studer 169 EQ in API 500 format
« Reply #108 on: July 24, 2010, 02:05:07 AM »
Does anyone know where to find the 2g 100k rev log pot?  I've got all the other parts I need, but this one is very tough to source.  Or is there a suitable replacement? Thanks.

dmp

Re: Studer 169 EQ in API 500 format
« Reply #109 on: July 24, 2010, 01:17:22 PM »
Colin at AMT told me he has these on order and should have them in stock in a few weeks.


Re: Studer 169 EQ in API 500 format
« Reply #110 on: July 24, 2010, 01:55:22 PM »
in the mastering version, the "feedback caps" at the input stage are 22pF, and the on the "filter" feedback is 10pF. On the 500 series version, the values are much higher, 47pF in each place. Is there a reason for this, and can I use the smaller settings, and hopefully increase bandwidth on the 500 series eq?

Even with the 47p caps the -0.5 dB point is around 100 kHz. Do you have a bat as a customer?

Re: Studer 169 EQ in API 500 format
« Reply #111 on: July 24, 2010, 02:01:28 PM »
 
Does anyone know where to find the 2g 100k rev log pot?  I've got all the other parts I need, but this one is very tough to source.  Or is there a suitable replacement? Thanks.
Don't know what pots fit this PCB but smallbearelec.com sells dual 100K rev log Alpha pots.

strangeandbouncy

Re: Studer 169 EQ in API 500 format
« Reply #112 on: July 24, 2010, 03:20:45 PM »
Audiox,


    LOL!



   no, but plenty of rats . . . I was just wondering. I know i should be able to calculate the turnover point . . . .


   kIndest regards,



    ANdyP
. . . . RUH ROH . . . . .

regularjohn

Re: Studer 169 EQ in API 500 format
« Reply #113 on: August 03, 2010, 09:52:49 AM »
Does anyone know of anyone that sells the dual 10K lin pots and the 22k lin pot with a 1/4" shaft?  I've been searching the net with no success.  I know small bear has the dual 100k rev log with 1/4" shaft.  I just hate those tiny potshafts from the audiomaintenance pots.  I like big vintage knobs, man!  With those tiny pots it's kinda like throwing a hotdog down a hallway, hehe  ;D
SATANOSCILLATEMYMETALLICSONATAS

Sammas

Re: Studer 169 EQ in API 500 format
« Reply #114 on: August 03, 2010, 09:23:11 PM »


Slightly off topic from your question, regularjohn...


but would it be possible to just bang a 127k resistor in parallel with the 470k rev log potentiometer to get 100k rev log??

wolfgang

Re: Studer 169 EQ in API 500 format
« Reply #115 on: August 04, 2010, 01:53:40 PM »
Ohms value would be right, but the rev log law would change!!! Dont now how the pot would act with this mod!!


regards,
Wolfgang

Re: Studer 169 EQ in API 500 format
« Reply #116 on: August 04, 2010, 02:24:16 PM »
Smallbear has dual 10K alphas:

http://Http://www.smallbearelec.com/Detail.bok?no=736

They also have 25K single, not sure what difference this would make, otherwise Omeg makes 22K pots and you can get them direct.

hth!

regularjohn

Re: Studer 169 EQ in API 500 format
« Reply #117 on: August 04, 2010, 04:17:28 PM »
yeah, but they don't have center detents (the only one that doesn't matter for is the 100k dual rev log since it's the frequency sweep).  the detents are nice because then I know that when the knob is at 0 it's actually no cut or boost.
SATANOSCILLATEMYMETALLICSONATAS

strangeandbouncy

Re: Studer 169 EQ in API 500 format
« Reply #118 on: August 04, 2010, 04:29:05 PM »
HI,


   just because there is a centre detent, doesn't mean that it will be zero boost/cut . . .mine are NOT zero at 12 o clock. more like 12,30 or even 1 o clock. . .


   just my pennies worth.


    ANdyP
. . . . RUH ROH . . . . .

Re: Studer 169 EQ in API 500 format
« Reply #119 on: August 04, 2010, 04:42:47 PM »
yes, most of these pots have 20% tolerance.  In any case, I believe you can request center detents at Omeg, not 100% sure though.

cheers!


 

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