[avdo]

Received transformers today, ordered on the 28th of April.
Looking good, thanks! Keen on finding out how they perform!

Jarno, thanks!
Will wait news!

[avdo]

Any pictures of the PCB How does it look like

Jazzyjoepass,
Here added some pics:
http://www.avdaudio.com/files/1176/manual/MainPCB_GR_RATIO.png
http://www.avdaudio.com/files/1176/manual/11-3.png
http://www.avdaudio.com/files/1176/manual/11-4.png
http://www.avdaudio.com/files/1176/manual/11-5.png
http://www.avdaudio.com/files/1176/manual/11-6.png

Hope will be ended assemblies manual soon, with all steps. Will add in to our website.
And add some audio samples.
Will add pics with case and all kit's parts this weekend!

[3nity]

Need 2x 10468 inputs.
Do you know when they will be available?

[avdo]

Need 2x 10468 inputs.
Do you know when they will be available?

3nity, hello!
Working on this.
All parts in stock. We are waiting only case for transformer.
Hope to receive prototype during two weeks. If it will be OK, will ordered others.
Will takes 1-2 months, I hope.

[3nity]

2 months ?
Ok thanks

[letterbeacon]

Do you sell the PCBs for the attenuator separately? If not, is there a wiring diagram to hook it up?

[avdo]

Do you sell the PCBs for the attenuator separately? If not, is there a wiring diagram to hook it up?

letterbeacon, hello!
Have PCB separately, but dont sale this!
If you need small quantity, I can send.
Or use next img for connecting:

[slipperyflax]

As I randomly check in on DIY-sites from time to time I saw that you 1176 project was ready Great work! Is there any sound samples available somewhere?

[avdo]

As I randomly check in on DIY-sites from time to time I saw that you 1176 project was ready Great work! Is there any sound samples available somewhere?

slipperyflax, hello!
I try to record some samples!
Had completed some 1176, but sold out!)))
Now I will try to do one for me and will recorded audio samples! Hope to will able of the end of this month!
May be some guys have built and add can here some samples or any report about!?
Thanks!

[avdo]

Hello guys!
Small video with completed 1176LN.

https://youtu.be/1XrJkdNHWWs

Will record some samples with good tracking soon!

[sivert_h]

Hi!

I'm thinking about getting the 1176 as my first big build, however the Mouser cart says I need to order a minumum of 2500 of the 2N5457 JFET. I feel that's a bit excessive. 
How do I get only the 2 i need?

[rock soderstrom]

https://www.musikding.de/2N5457

[Zebra_PD]

Any plans to offer the 1176 transformers separately Avdo?

[avdo]

Any plans to offer the 1176 transformers separately Avdo?

Hello!
People ask me about often!
But I don't have any plans to sale they separately! May be near future)))
But not now! Sorry!

[avdo]

Hi guys!

I'm happy to introduce you my new MP312-4!
 
For a while I wanted to create a Rack version of API312 mic preamp with 4 channels.
I'm sure people will love it and will be using different Rack modules. It was my idea to create something exciting!
I hope you will love this new MP312 4 channel mic preamp since it was made based on old API 312 version preamp.
And now you can use four channels per unit! I hope it will be a good reason to select this kit.



Price: 250$ + shipping!

Will be redy for shipping from 15 of November!

More information on WWW.AVDAUDIO.COM

[sivert_h]

So my 1176 kit came in the mail today. Super excited! However, the components from Mouser hasn't arrived yet, since some of the things on the order list are on backorder. Can I change these parts out with something else? I don't wanna wait until january! 

Central Semiconductor 2N3391A
https://no.mouser.com/ProductDetail/central-semiconductor/2n3391a/?qs=Ypxpq5eNvNX3XKlGoLvHiQ%3d%3d&countrycode=NO&currencycode=NOK
for a
Central Semiconductor 2N3392
https://no.mouser.com/ProductDetail/610-2N3392

Xicon 271-82-RC
https://no.mouser.com/ProductDetail/xicon/mf0w4ff820jb00/?qs=phSiGpRsB3bL0CDyKte9xg%3d%3d&countrycode=NO&currencycode=NOK
for a
Yageo MFR-25FTE52-82R
https://no.mouser.com/ProductDetail/603-MFR-25FTE52-82R

Xicon 291-3.9M-RC
https://no.mouser.com/ProductDetail/xicon/cfr0w4j0395b00/?qs=gNrS0XdGgHw1fqpG5m%252ba6Q%3d%3d&countrycode=NO&currencycode=NOK
for a
Ohmite OK3955E-R52
https://no.mouser.com/ProductDetail/588-OK3955E-R52

And this potmeter which I haven't found a good alternative for
https://no.mouser.com/ProductDetail/alpha-taiwan/rv24a02f-10-15s1-b25k-la/?qs=8%252br4Hz5Xir8EfVam1xppWA%3d%3d&countrycode=NO&currencycode=NOK

[avdo]

sivert_h, hello!
Sorry for delay! On the trip now.
But will try to help you as I told you in pm.
1) 2n3391 and 2n3392.
I think it could be works, but it has to do some tests. 2n3392 has less HFE than 2n3391. It gives you less gain. And not sure it will works good.
You can find this parts on:

www.banzaimusic.com

They are from Germany, and have good parts you need.

2) About resistors. You can change all these resistors as you wrote.
Or you can use 1/2w resistors without any problems.

3)  25k attack pot.
Check please same website for ordering this. They have same pot too.

If you will need more help, please, contact me!
I have all this parts in stock. If you want can help you with.

You are welcome!

[avdo]

Hello!

Added some new sound samples of drums!

New 1176 compressor with Orange Drop MOD capacitors.

Drums compression: https://yadi.sk/d/gsmBWpMfqYcllA 

[sivert_h]

I have an issue with the calibration steps for the 1176.
Under "Discrete Meter Circuit/Null Adjust" it says:
  1. Zero the compressors "GR" meter with the R71 zero adjust pot.
Thats fine, it works. However for step 2:
  2. Adjust pot R75 (null adjust) for 0.0 Volts across R74. It is TP2 place!

it is always 0.0 Volts across R74 no matter which way i turn R75. Turning R75 only changes the VU meter. So I set R71 and R75 so that the VU meter says 0 dB, no need for step 3. Is this correct?

The issue continues during the next step "Reduction Meter Tracking Adjustment". After switching JumperT1 to ON
"Your meter will most likely drop. Don’t worry! Set it back to zero by using the R71 zero adjust pot."
The meter drops, but turning R71 changes nothing on the VU meter. That can't be correct?

Doing the rest of the calibration changes nothing on the VU meter. I have no idea where the error is. Help?!

[avdo]

I have an issue with the calibration steps for the 1176.
Under "Discrete Meter Circuit/Null Adjust" it says:
  1. Zero the compressors "GR" meter with the R71 zero adjust pot.
Thats fine, it works. However for step 2:
  2. Adjust pot R75 (null adjust) for 0.0 Volts across R74. It is TP2 place!

it is always 0.0 Volts across R74 no matter which way i turn R75. Turning R75 only changes the VU meter. So I set R71 and R75 so that the VU meter says 0 dB, no need for step 3. Is this correct?

The issue continues during the next step "Reduction Meter Tracking Adjustment". After switching JumperT1 to ON
"Your meter will most likely drop. Don’t worry! Set it back to zero by using the R71 zero adjust pot."
The meter drops, but turning R71 changes nothing on the VU meter. That can't be correct?

Doing the rest of the calibration changes nothing on the VU meter. I have no idea where the error is. Help?!

sivert_h,
thanks for your mail!
As I told you before, I can give you my Whatsapp. We can contact on-line.
And we decided your problem, and now it is works!