Rod,
Do your headphones have a stereo/mono switch?
If so just unwire the speaker lead going to the ring contact on the
audio jack and set your headphones to mono. That's what I am doing
(actually I used a mono jack instead of a stereo jack). Then if I plug
in a speaker using a mono plug everything will be copacetic.
tim ab0wr
On Wed, 14 Mar 2018 10:31:10 -0700
"WA9GQT via Groups.Io" <WA9GQT@...> wrote:
I was very cautious and finally got the uBITX?wiring correct after
looking at all the posts.? It was receiving great until I unplugged
my headphones and plugged in a speaker.? I fried U1!? My speaker plug
was not stereo it was mono plug!? So that's why U1 audio amp fried.
So I just ordered 2 TDA2822M's from Amazon.com.? I am unable to use
the uBITX until I replace U1. I am very upset about this audio
circuit design!? This circuit seems to be the Achilles heal of this
radio, including a?very loud popping between?receive/ transmit.? I
would?like to use a speaker in the future.? I will?be sure to be very
careful of the wiring of any?speaker.? I hope to have my first
contact soon!
A very unhappy
Rod, WA9GQT
