pidah

Re: APP Studio Ing's products
« Reply #700 on: September 19, 2012, 09:40:59 AM »
Just want to say that a Pier Paulo designed phone pre sounds very interesting to me. Very interesting indeed!

cheers,
Pieter
--Strength through bewilderment--


ppa

Re: APP Studio Ing's products
« Reply #701 on: September 19, 2012, 04:36:55 PM »
Hy Paolo

Any news abut your phono pre?  ;D

Do you have any recommendations for transformars for the IO Board?


cheers

Rico

I have just designed the schematic and I going to design the PCB.
After I will have done to design this PCB I will order some PCB for prototyping , at this point, if this phono preamp runs fine, I could give you two of these ones. 

kind regads
Pier Paolo

that would be really generous  :D :D :D

About the Line IO boards
Do you have any transformer recommendations?

regards

Rico

regarding the phono pre I am working on PCB design yet.

regarding trasformers fro I/O boaed there is the following suggested:

-    CMOB-2H
-    CMOB-2L
–   CINEMAG CMOQ-2S
–   CINEMAG CMOQ-2L
–   CINEMAG CMOQ-2H
–   CLASSIC API EA2503
http://classicapi.com/catalog/product_info.php?cPath=21_37&products_id=79
–   JENSEN TRASFORMERS  JT-11SS-DLCF
–   JENSEN TRASFORMERS JT-123-ALCF

for clear sound I suggest you the CINEMAG CMOQ-2H, CMOB-2H,  JENSEN TRASFORMERS JT-123-ALCF, JENSEN TRASFORMERS  JT-11SS-DLCF.


kind regards
Pier Paolo





ppa

Re: APP Studio Ing's products
« Reply #702 on: September 19, 2012, 04:39:04 PM »
Just want to say that a Pier Paulo designed phone pre sounds very interesting to me. Very interesting indeed!

cheers,
Pieter

thanks for you interest.
work is in progress  :)
 
Pier Paolo

kante1603

Re: APP Studio Ing's products
« Reply #703 on: September 29, 2012, 11:57:43 AM »
Hello Pier,

APP992's received in germany today.
And thank you very much for the gift you've added.Must think about a nice way to use it now,hahaha...

Best regards,

Udo. ;)

dingo

Re: APP Studio Ing's products
« Reply #704 on: October 19, 2012, 09:06:44 AM »
hello Pierpaolo ;D
here some photo with my new equalizer
made with your boards   IO board for input and output,APP992 doa, APP PSU, and filter boards
four bands parallel eq PARAMETRIC shelving, variable  Q on all bands ,low and high bands variable q in bot mode
variable gain  +- 9db   +-16db
clean sound very musical and usable , for mixing, tracking,and mastering!!
thank you Pier.








[silent:arts]

Re: APP Studio Ing's products
« Reply #705 on: October 19, 2012, 09:46:50 AM »
 8)

kante1603

Re: APP Studio Ing's products
« Reply #706 on: October 19, 2012, 11:41:51 AM »
Hello dingo,

a really nice piece of gear you have there,congratulations!
Most of it seems to be italian,that's a modushop case with pierced inner base,right?

Have fun with it,

cheers,

Udo :)

dingo

Re: APP Studio Ing's products
« Reply #707 on: October 19, 2012, 01:29:52 PM »
Yes, it is made with an italian chassis and it uses all italian boards by
APP studio ing. (also the filter boards are APP studio ing.).

Pier Paolo designed this eq in these months, and since this eq's features
exciting to me I have asked to Pier to build one.

So, at this point, Pier sent to me the filter boards and the other boards.

This eq does passively the sum of the out signal from the filter boards,
moreover it is possible to set the q of the filter boards also in shelving
mode, that's very useful.
The filter boards use SVF filter topology. "

« Last Edit: October 19, 2012, 01:48:52 PM by dingo »

Re: APP Studio Ing's products - APP2050 AND APP2050E READY TO SEND OUT
« Reply #708 on: November 01, 2012, 04:47:33 PM »
Cheers Pier I'd like to place an order for one
APP STUDIO ING. PSU2 please.

also could you tell me what is the input voltage range for both 16 and 24 volt out, so i can devise a transformer to work for me at 230 volts in.

PM'd you too

ppa

Re: APP Studio Ing's products - APP2050 AND APP2050E READY TO SEND OUT
« Reply #709 on: November 01, 2012, 05:25:50 PM »
Cheers Pier I'd like to place an order for one
APP STUDIO ING. PSU2 please.

also could you tell me what is the input voltage range for both 16 and 24 volt out, so i can devise a transformer to work for me at 230 volts in.

PM'd you too

Hi

with 230 V of AC power on input the power trasformers should be the following ones:

for +-16V out are indicated power trasformers with 15+15 VAC of secondaries and 230VAC or 220VAC of primary
(or 110+110VAC or 115+115VAC of primaries).
Moreover, are indicated for +-16V power trasformers with 18+18 VAC of secondaries and 240VAC of primary
(or 120+120VAC of primaries). These primaries must be connected in series.


for +-24V out are indicated power trasformers with 22+22 VAC of secondaries and 230VAC or 220VAC of primary
(or 110+110VAC or 115+115VAC of primaries).
Moreover, are indicated for +-24V power trasformers with 24+24 VAC or 25+25VAC of secondaries and 240VAC of primary (or 120+120VAC of primaries). These primaries must be connected in series.

In any case before to take the AC power trasformer send me an email for my suggestions, please.

thanks
cheers
Pier Paolo



for +-16V out are indicated power trasformers with 15+15 VAC or 18 + 18VAC of secondaries.
For +-24V out  I council 22+22VAC, 24+24VC , 25+25VAC of secondaries.
If you need an AC power trasformer for 230 VAC it should have a primary for 230VAC 

 


 


oceres

Re: APP Studio Ing's products - APP2055, APP2050, APP2050E READY TO SEND OUT
« Reply #710 on: November 02, 2012, 04:42:21 AM »
Hello,

Any timeline for the APP2050 Germanium ones? Would be interested in a pair. Nice sTuff!

ppa

Re: APP Studio Ing's products - APP2055, APP2050, APP2050E READY TO SEND OUT
« Reply #711 on: November 03, 2012, 11:21:54 AM »
Hello,

Any timeline for the APP2050 Germanium ones? Would be interested in a pair. Nice sTuff!


I have just a little stock ready to send out but before I put it on sale it is near to be ended.
I have a pair for you.
I am going to send you a PM.

thanks for inquiry
cheers
Pier Paolo

Nobru

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #712 on: November 04, 2012, 09:15:11 AM »
I just love those op amps they sound goooooooooooooooood !
BOOM DANS LE KLASSIKA

ppa

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #713 on: November 05, 2012, 03:04:30 AM »
thank you very much for your comments

cheers
Pier Paolo

dogma

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #714 on: November 14, 2012, 05:33:11 PM »
While I have not yet paid for my two ma1"s and two app992"s and two germ 2520 I just want to report pier is a pleasure to deal with and he is a real design talent - like so so many others here. It's my birthday and I'm merry!! Can't wait for th ma1s in my rack!!
Matt
[email protected]

dogma

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #715 on: December 01, 2012, 05:53:16 AM »
Ive a pair on the way and give a thorough rundown after breaking them in. I;m thinking this is of the TG< EMI family with the germ and silicon transistors? Just a guess - in fact I;ve been thinking about the topology. Pier?

ppa

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #716 on: December 01, 2012, 04:32:09 PM »
Ive a pair on the way and give a thorough rundown after breaking them in. I;m thinking this is of the TG< EMI family with the germ and silicon transistors? Just a guess - in fact I;ve been thinking about the topology. Pier?

No, MA1 is a my own design,
regading sound, the silicon version of MA1 (no germanium trasistors inside) sounds similar to TG EMI preamp I think.

electrisizer

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #717 on: December 03, 2012, 12:33:31 PM »
hey ppa,

i need 2x 992 kits, when do you think are they ready again?

greets  :D

ppa

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #718 on: December 03, 2012, 12:44:02 PM »
hey ppa,

i need 2x 992 kits, when do you think are they ready again?

greets  :D

I would have them ready to sell but I have not any 1N4148 diodes (8 for each 992) at the moment,
another forum menber has bought them without these diodes at the reduced price of 16.9 euro each one.
If you want buy them in this moment I can sell them to you without diodes.

thanks for inquiry
kind regards
Pier Paolo





dogma

Re: APP Studio Ing's products - MA1 GERMANIUM MIC DI PRE READY TO SEND OUT
« Reply #719 on: December 03, 2012, 02:16:15 PM »
Hey Pier - Could you please check your email. From thenewmandmshow.at.gmail.dot.com - Cheers, MAtt