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Discussions about the products / Re: Christmas wish-list new modules suggestion!

« on: September 08, 2025, 06:57:07 PM »

And a U47 or 48

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Discussions about the products / Re: Christmas wish-list new modules suggestion!

« on: September 08, 2025, 06:55:18 PM »

For the widener i don't like the plugin i use, it works but it does not sound pleasent to my ears. The idea is using my comps for mix bus and to have the widener with it in the analog path. It does not need to be very complex with a lot of features so it could be not much expensive. Beeing able to center the low end would be super cool though, and M/S.

The limiter it's a bit tricky cause i have a free plugin that is stunning so i don't need one but if it can be added to a widener and works as amazingly as my plugin it would be tremendous.

I already have two CP5176 and two MU524, they sound super cool but matching them is not super easy, plus a stereo comp should be less expensive maybe. I would be more on the stereo fet.

I would love an analog chorus that i can use with my guitar or for mixing. I have no valuable reasons for that but i would pull the trigger for a pair.

A 10 slots lunchbox with faders pan and aux sends in differents racks 

Some 19 racks (everything tubes)

Also maybe some other kind of products like a bass head amp (solid state first), guitar head amps...

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Discussions about the products / Christmas wish-list new modules suggestion!

« on: September 08, 2025, 05:04:27 PM »

Here is a list of modules i wish!

 - A stereo width module, with the ability to center the low end, something like the TK audio M/S station maybe with a limiter added and the possibility to switch before or after.

- A stereo fet compressor would be pretty cool. (a varimu stereo comp too)

- A analog chorus, something like the Pope audio dirty C would be super cool.

- Maybe an analog delay too.

Cheers!

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 09, 2025, 05:18:48 PM »

It is all fine!!!

I swapped u1 with another IC and it works. I've done that before with a Burr Brown i have in stock and it did not worked, so i thought it wasnt that.

Huge thanks for your time and patience!

Lud.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 09, 2025, 08:04:27 AM »

1VAC : Unit on > 1,11
           HPF on > 0,95
           HPF fully clockwise > 0,15

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 08, 2025, 11:42:09 AM »

First the unit has a slighty lower level than the original signal and it comes up close to the original when i engage the unit. When then i engage the HPF there is a small drop and when i turn the pot fully clockwise i go from around -11dbfs to -28dfs, a massive drop.

Edit: sorry i should have mesured it properly with my multimeter. I'll do it tomorow.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 08, 2025, 10:34:08 AM »

There is continuity between U1 pin 1 and pot1 middle back pin and the one below, and there is continuity between 0V and Pot1 middle front pin and the one below.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 08, 2025, 08:15:50 AM »

So i relaced the caps but it does not change anything. How do i check they are not shorted?

Here is a video of the issue where i compare how acts the HPF against the low band.

https://www.youtube.com/watch?v=m53ydKHYfiY&ab_channel=AppartBayonne

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 07, 2025, 12:04:19 PM »

Could it be C8 & C9 that are faulty? I have some wima 150n in stock so i can replace them.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 07, 2025, 11:36:43 AM »

R5 & R6 are 3K3 and C8 & C9 are labelled 0,15 > 150n.

I have remake the joints but still P1 act like a whole spectrum attenuator.

I also remake the joints of J1a & J1b.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 05, 2025, 10:12:05 AM »

After playing with it frequencies seems right but the HPF does not work correctely, it attenuates pretty much all the frequencies, it act like kind of a fader or attenuator?

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 05, 2025, 09:36:37 AM »

Unit is working now.

 I've tested another module in the lunch box i use for testing and there was the same noises so i replace a full working module in my wokflow chain and no noises at all. Everything seems fine. I have to know now whats wrong with the lunch box i usualy work with for building modules.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 03, 2025, 05:28:50 PM »

I have 36 ohms.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 03, 2025, 10:45:39 AM »

Ok, so this is what i got :

TP1 : 0,75
TP2 : 0,7
TP3 : 0,7
TP4 : 0,65
TP5 : 0,65
TP6 : 0,65

Those cracklings are actually always there, even when the Lunch box is off.

I've removed the face, the IC's and there is still that noises crackling. I remade some solder joints, I checked the caps polarities. It seems to me that it cames from a ground issue and/or a cap but i can't see from where. I also wonder if Q2 is well placed?

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EQ531T Tube Equalizer / Re: EQ531T build

« on: July 02, 2025, 11:06:56 AM »

I've done the build and i have strong dirty noises parasites in, unit off or on, around -30/-25 dbfs. Everything was good when testing exept with TR1 that i can't match the 1vAC, it only goes to 0,88v.

Have you got an idea what the first thing i've got to check?

Cheers.

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EQ531T Tube Equalizer / Re: EQ531T build

« on: June 30, 2025, 03:21:06 PM »

Ok, thanks a lot.

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EQ531T Tube Equalizer / EQ531T build

« on: June 30, 2025, 10:54:43 AM »

Hi everyone, I have started building the 531T and there's three 470 condensers and one 470 KAK listed. I have four KAK. Is that an Issue?

Cheers.