creal

HELP needed for P2P LA2A (Cayocosta Layout)
« on: January 29, 2012, 08:57:56 AM »
Hi all,
I start wiring my P2P LA2A (Cayocosta Layout).
After Looking the schematic, BOM and the layout, i found some differences.

So i need advices to put the good values in the right place and finish the little thing

1) R25 maked as 27K-100K on the BOM and schematic, but this one is marked as 33K on the layout?
   if i remember well the DLA2A use a 33K. I'll use a Drip's T4B.
2) C14 is variable on the layout and 330pf (ceramic) on the BOM?
3) C12 looks to be a mica, but on the BOM it's a .001Sprague Orange drop.
I ordered the Orange Drop, can i use this or it's needed to put a mica?
Does it make a difference on the final sound?

I just need to found the UTC A-10 for the input, PM me if you have one for sale. I'm ready for buy it now.

Best
Cyril

Ps:  i'll post pictures asap
« Last Edit: January 29, 2012, 03:46:00 PM by creal »


creal

Re: HELP needed for P2P LA2A (Cayocosta Layout)
« Reply #1 on: January 31, 2012, 07:27:55 PM »
Hi All
nobody for advices?? :-\

Biasrocks

Re: HELP needed for P2P LA2A (Cayocosta Layout)
« Reply #2 on: January 31, 2012, 08:24:52 PM »
Of the top of my head,

R25 is the resistor for the meter, correct? This has to be selected for each T4B iirc. SSLTech posted a few years ago on how to correctly select this value. I think 33K is the generally accepted value.

C14, many folks use a fixed value here, if it's the cap I'm thinking of it affects overall frequency response, so you may want to tweak it's value after building.

C12, I doubt if a mica vs poly will make much difference, try both.

The key is to get it working and then tweak from there.

Regards,
Mark

http://SharktankPro.com

"I'd rather use an SPX90 than a UA plugin....." Joe Barresi

creal

Re: HELP needed for P2P LA2A (Cayocosta Layout)
« Reply #3 on: February 01, 2012, 07:02:42 AM »
Hi Mark,
Thank you for advices.
I'll test that soon and post results
Best
Cyril

Of the top of my head,

R25 is the resistor for the meter, correct? This has to be selected for each T4B iirc. SSLTech posted a few years ago on how to correctly select this value. I think 33K is the generally accepted value.

C14, many folks use a fixed value here, if it's the cap I'm thinking of it affects overall frequency response, so you may want to tweak it's value after building.

C12, I doubt if a mica vs poly will make much difference, try both.

The key is to get it working and then tweak from there.

Regards,
Mark


 

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