babcock
New Member
Hello everyone,
I am a HAM (as in Amateur Radio), and I now have multiple radios in my van... All is well, except that unless I am looking at the radios (not good to do for long while driving), I cannot tell which radio is talking.
Each radio is hooked up to an external speaker; however, the speakers are located next to each other and telling them apart when the transmissions are short is next to impossible.
What I would like to do is place a Light Emitting Diode into each of the circuits so I can look up and see at a quick glance which speaker was just active. I am thinking that the LED could light up and then stay illuminated for approx 5 seconds. (Actually, the idea of staying illuminated for 5 seconds is a 'nice to have', but not required.)
The external speaker jack on each radio is 8 ohm, calling for a speaker in the 3-10w range. I am using 8 ohm, 5w external speakers. The sound output volume and quality is perfect.
Any ideas for something realitively simple that I can drop into the circuits? (I'm pretty good with a soldering iron.)
Matt
I am a HAM (as in Amateur Radio), and I now have multiple radios in my van... All is well, except that unless I am looking at the radios (not good to do for long while driving), I cannot tell which radio is talking.
Each radio is hooked up to an external speaker; however, the speakers are located next to each other and telling them apart when the transmissions are short is next to impossible.
What I would like to do is place a Light Emitting Diode into each of the circuits so I can look up and see at a quick glance which speaker was just active. I am thinking that the LED could light up and then stay illuminated for approx 5 seconds. (Actually, the idea of staying illuminated for 5 seconds is a 'nice to have', but not required.)
The external speaker jack on each radio is 8 ohm, calling for a speaker in the 3-10w range. I am using 8 ohm, 5w external speakers. The sound output volume and quality is perfect.
Any ideas for something realitively simple that I can drop into the circuits? (I'm pretty good with a soldering iron.)
Matt