Hi Dexter,
Even with the Pin 3 mod, and also when I added the second 2N2222 to include the Pin 1 mod with it, I was having pops that were getting quite painful for a "non-deaf" person (hihi). Everyone's attempts seem to be trying to get the audio from the LM386 to be gone as quickly as possible. As the LM386 by default is disconnected from power on TX, I am using the second 2N2222 to slam the power off the chip as fast as possible.
I don't know what improvements that Raj has made/suggested of which you speak. I am not a huge fan of this "reflector style" forum, and find it confusing to browse and find that which you are seeking. If you could point me to a post for my review, that would be most helpful.
I do have CAD capabilities, but my post was created by simply editing the graphic that Giancarlo has kindly posted.
Let's talk about remainder of your last paragraph for a moment. I am assuming the CW mod you speak of is part of Raj's improvements. If it is not, are you suggesting I create a resistive audio mixer to patch in the output from the CWcarrier pin from the Raduino (Pin D6, or P3-2)? I assume that would be much nicer sounding than the square wave sidetone generated directly from the Rad to the speaker output as per Allards diagrams.
In any case, I would appreciate Raj's improvements to be pointed out to me so I can review and maybe regroup (always looking to improve).
Best Regards,
Jonathan, N?JMS
