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Hi Paul The NE5534’s provide the gain for the various IF modes. U1A and U1B split the audio path for the USB/LSB and CW modes of operation to the main TDA2003 audio amplifier and the line output

OK, so that's where the description can be found. Thanks Frank. [email protected]> wrote:

Hi Paul If you go to Andys blog page via google (G6LBQ BLOG) it may help you if not Andy will I am sure will help you with some answers if you send him a message hope this helps regards

Andy and others The Irwell modules are interesting, thanks for sharing these.? I've been studying the Audio module. It appears that all of the preamp gain is via U1 NE5534, which includes

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Transceiver Audio Sub-System/PCB Files For Irwell Transceiver AF

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Transceiver Audio Sub-System/PCB Files For Irwell Transceiver AF

Hi all Just letting you know more notes / updates /etc, on the Irwell and other interesting topics can be found on Andys Blog site pages Enter on google search to view? ?G6LBQ BLOG? and all will be

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Transceiver Audio Sub-System/PCB Files For Irwell Transceiver AF

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Transceiver Audio Sub-System/G6LBQ Populated PCB.pdf (

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Transceiver Audio Sub-System/G6LBQ Irwell AF.pdf (

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Audio DSP Noise Reduction/Arduino Controller Software/BHI_DSP_Control.ino (

The following files have been uploaded to the Files area of the [email protected] group. * /G6LBQ Irwell Transceiver/Irwell Audio DSP Noise Reduction/G6LBQ Irwell Audio DSP Controller Rev1.pdf (

Haven't heard much from Andy last few years. Was hoping he was safe and well. I didn't realize he had a blog page. Thanks for the update Frank and hi to Andy. 73 Ken VA3ABN [email protected]>

Hello? to all, Just letting you know the Irwell high spec tcvr is nearing completion after many ups and downs and an update by Andy is due on developments in the very near future. Another project

Ian did the board arrive? Chris

Hi Adrian Thank you for your reply and your findings on your build and will be taken onboard on our way forward. We only produced the board for our group and used/supplied the info for that board.?

Hi Chris The genuine G6LBQ V3 PCB is near identical to the PCB image you have sent out. However your image says V2...this could lead to confusion. The G6LBQ files for the PCB are in the Irwell folder

This is what we ended up with....

Hi Adrian We done a group build of them, made our own gerbers and sent them away for production as we couldnt find a source of the PCBs. I have not built it as yet as we are still waiting on a couple

Hi Ian I will post it first and we can see what the postage will be, no hurry for the payment. If its a couple of quid im sure you could buy me a cup of tea at the next rally we meet at :) LOL Ill