camerart
Well-Known Member
Hi,
I have built an interface between computer and radio, for sending Morse. See attachment.
I have substituted: C1 2 X 1uF electrolytic polarised caps connected -++-. Q1 BC 548 PNP. D1,D2 1N4148 T1 Maplins LT44 (HX82D)
It works, but after a while seems to fade. I'm not sure if it is affecting the soundcard, or if my circuit is getting hot.
Can anyone tell me where I've gone wrong, and how to improve it.
Cheers, Camerart.
I have built an interface between computer and radio, for sending Morse. See attachment.
I have substituted: C1 2 X 1uF electrolytic polarised caps connected -++-. Q1 BC 548 PNP. D1,D2 1N4148 T1 Maplins LT44 (HX82D)
It works, but after a while seems to fade. I'm not sure if it is affecting the soundcard, or if my circuit is getting hot.
Can anyone tell me where I've gone wrong, and how to improve it.
Cheers, Camerart.