Potato Cakes

Re: Build Thread:PQD2
« Reply #200 on: February 09, 2019, 06:19:43 PM »
Got it done. The 10dB gain boost is gone and everything works. Oh, and it sounds amazing. I'd be curious if different tubes would make any meaningful difference with this circuit. Has some one did any sort of testing in regards to tube selection? It already is quiet and smooth sounding. The question is for science.

Thanks!

Paul
« Last Edit: February 20, 2019, 03:36:12 PM by Potato Cakes »


Potato Cakes

Re: Build Thread:PQD2
« Reply #201 on: February 09, 2019, 06:20:14 PM »
One more. For the kids.

Re: Build Thread:PQD2
« Reply #202 on: February 20, 2019, 01:29:08 PM »
One more. For the kids.

Nicely done!

Gustav

erquere

Re: Build Thread:PQD2
« Reply #203 on: May 02, 2019, 01:09:54 PM »
Hi ! Looking for the pcbs of the PQD2, would anyone have spare ?

Used to be a journalist but I prefer build comps and eqs

Potato Cakes


funkymonksf

Re: Build Thread:PQD2
« Reply #205 on: January 29, 2020, 10:29:02 PM »
Hey everyone,

I’m going to be building this eq once I receive the parts. I’m considering using the Edcor XS1100 transformers instead of the Lundahl 5402. I know this works, however, I’m not sure there’s enough space on the PCB layout.

Has anyone used Edcors with success? If so, did it fit without mods? Sound/opinions?

funkymonksf

Re: Build Thread:PQD2
« Reply #206 on: February 01, 2020, 03:07:47 PM »
Greetings,

I just ordered the Don-Audio power transformer for this project. It's the model designed for 2-4 channels. The secondaries are: 220v, 9v, & 5v.  From the schematic it says to heat the tubes with 12v. I was told I need to replace some resistors and do some traces for this to work. Does anyone using this power transformer have any advice or input?!?!

I want to make sure I don't make any mistakes. I appreciate any help. Thanks!

funkymonksf

Re: Build Thread:PQD2
« Reply #207 on: March 13, 2020, 04:49:06 PM »
Does anyone have a list or layout as to where the resistors go on switch it PCB?

Potato Cakes

Re: Build Thread:PQD2
« Reply #208 on: March 13, 2020, 08:59:44 PM »
It's in the document PQD2switches.pdf that is part of the build documents.

Thanks!

Paul

funkymonksf

Re: Build Thread:PQD2
« Reply #209 on: March 15, 2020, 02:42:47 PM »
Thank you sir!


 

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