Sorry I missed this. The relay does not energize on TX. I believe it is for PA mode.
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Key line in a Lincoln II+??
- Thread starter 2NC995
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Sorry I missed this. The relay does not energize on TX. I believe it is for PA mode.
And just to add....I can't tell you all how much I appreciate the help on this little project. If I didn't have the knowledge base to lean on I wouldn't have dreamed of tackling it myself.
But if it all goes down in flames, I'm still the guy that lit the match!
But if it all goes down in flames, I'm still the guy that lit the match!
My skills leave a lot to be desired, but this should work.
Hate drilling holes in a new rig, but at least these two will be hidden. My board looks like an ancient artifact among the SMDs.
Panel jack for the back is tricky...not much room to work with!
Panel jack for the back is tricky...not much room to work with!
Why not use the jack for the CW KEY unless you have a need for it?
Got it together after dinner and took for a test spin....GOODBYE SSB DELAY!
Yes sir! Now you don't have to turn up your power mic so the background noise keeps the amp keyed or say uhhh all of the time. 
I printed it on paper with a laser printer, transferred it to a copper board with acetone, then etched the copper clad board in ferric chloride to remove everything that wasn't the circuit. I had done this a few times over 20 years ago, except using a sharpie instead of a laser printer. I learned this method from the internet. I had hoped it might turn out a little better, but the image was already quite pixilated because I drew it up in MS paint.
Someone with a little more savvy than me could figure out a way to add a second transistor and use the NO contacts instead of the way I did it. The problem with my method is that if you turn the radio off while the amp is on, the amp will key. A circuit failure will have the same result. The good thing is the relay is loud enough that I know when it's working, nice click when the radio is turned on and the same in Tx. So, plenty of room for improvement by folks in the know, but I'm happy with it. Of course, in a radio where the +8V tx was more accessible than mine it wouldn't be an issue...simply swap the contacts and you're off to the races.
Someone with a little more savvy than me could figure out a way to add a second transistor and use the NO contacts instead of the way I did it. The problem with my method is that if you turn the radio off while the amp is on, the amp will key. A circuit failure will have the same result. The good thing is the relay is loud enough that I know when it's working, nice click when the radio is turned on and the same in Tx. So, plenty of room for improvement by folks in the know, but I'm happy with it. Of course, in a radio where the +8V tx was more accessible than mine it wouldn't be an issue...simply swap the contacts and you're off to the races.
I also have a way of doing a key line that works regardless of radio, and only requires a relay and a couple pieces of wire, but it has to be a DPDT relay. Let me know if you want info if your current setup doesn't work out.
~Cheers~
~Cheers~
I also have a way of doing a key line that works regardless of radio, and only requires a relay and a couple pieces of wire, but it has to be a DPDT relay. Let me know if you want info if your current setup doesn't work out.
~Cheers~
good deal!
Hey buddy just found this thread and wanted to say great job ! I have not made a board in 30 years in "technology lab" in school but I'm super impressed with your work ! I know its not rocket science but I would have built it out of loose components , heat shrink and soldier blobs lol .
Great work and quite inspiring , I was going to buy a new roger beep/noise toy box . Now im designing a circuit with a micro SD card slot and small led display as a interface touchscreen ! Will post pics and design when I work out the bugs .
Thanks again for the inspiration , Four-Two-Zero (Brian) in New Jersey
Great work and quite inspiring , I was going to buy a new roger beep/noise toy box . Now im designing a circuit with a micro SD card slot and small led display as a interface touchscreen ! Will post pics and design when I work out the bugs .
Thanks again for the inspiration , Four-Two-Zero (Brian) in New Jersey
Good deal! I’m sure many here could have done better than me, but I like having done it myself.
Would love to see your results!