Does the Morse/CW Keying Circuit on a President Lincoln/HR2510 only key the CW ocilator

[Onelasttime]

I want to be able to key my President Lincoln independently of the mic circuit. I know it has a circuit available from the factory through he accessory plug for CW.

Does this only break the Continuous Wave on CW and transmit or will this effectively key the radio no matter what mode you are operating in.

I want to try using some external processing and non-rf commercial condensor mic's and the like. Initially I want to feed the processed audio into the mic jack. I do not want to modify anything that I do nto have too. It would be super convenient if I did not have to wire up sometime special just to test this out. Same thing with trying direct injection latter on it saves time and space if I do not need to drill more holes for phono jacks and the like.

Thanks guys

 

[Captain Kilowatt]

I don't think it is active on modes other than CW but why don't you just try it and see?

 

[Mustang 131]

I don't think it does. But a fairly stock Lincoln with the right mike sounds amazing. I used a Heil Goldline for years and people couldn't tell the differnce between Lincoln and my BW 5100.

 

[LeapFrog]

When I started using a PC to process my audio I simply direct injected the audio and used a microphone (with the element removed/disconnected) PTT to key the radio, a foot peddle could easily be wired to do this.

You could make an adapter or "microphone box" that has the standard 4 pin plug going to the radio, and a momentary switch to activate PTT (foot switch or similar), also a standard RCA or mono 3.5mm audio jack could be installed in the box (connected to the audio wire through the 4pin wire harness).

For the Direct Inject, short of running wires out of (& through) the speaker grill I don't see how you can avoid drilling a hole for your audio input jack, I have thought about isolating and re-purposing the PA/Ext. Spkr jack on an RCI radio, that would mean no holes to drill!

external processing... It would be super convenient if I did not have to wire up sometime special just to test this out.

Not to be a bummer or anything but you want to externally process your audio while not having to wire something up to test this idea, you simply can't get all the benefits without doing some work, otherwise everyone would be doing this!

Sorry none of my RCI radios have a CW mode, or External CW key port. I can't answer those questions but I hope something in my post helps you.

Best Regards
-LeapFrog

 

[Onelasttime]

CKW I need to get another acc plug to do it. My factory plug is configured to allow the internal speaker to work. While the molded piece has the molded locations in it for other pin-outs it does not have the pins. Since I do not keep a kit like a Packard Connector Kit for replacing terminals and the like I need to order an acc plug first. They tend to run $14.99 a piece and if it is not going to work I just a soon not waste $14 on a connector that I will only need under one condition.

Second their are a lot of member's on this site and a good many modify their gear. I would much rather walk down a well blazed path than blaze the trail myself. On top of that if I can learn from someone else mistakes and triumphants I would much rather go that way! It would be foolish to say the least to not try to pick the minds of a web site devoted to 2 way radio communication.

Leapfrog, Yes if I can get around drilling holes in the chassis I would like too. You can send your direct injection signal into the radio many ways you do not need to slap a 1/4 inch phono jack on it. If you unhook the wires from the mic connector going into the first audio stage you can move those wires any place you want too in the radio you do not need to go through any of the audio chain prior to the agc if you do not want to.

I have considered using a mic modified to just key the radio. I mean heck if I wanted to be like Frankenstein I could just clip leads to the mic pins and use an alligator clip to key it too.LOL

I have considered adding mic jacks to the tube preamp so I can just connect a regular mic to it and one on the output. Two easy to send the audio signal through the preamp but send the keying signal from one connector to the next.

My Ten-Tec 715 has a 8 pin on the input, phono on the output and I have that hooked to a 5 pin uniden connector. I use a jumper I made that goes from 4 pin Cobra to 8 pin universal so I can use any readily available mic on the market.

If my tube preamp had a radio system mic jack on the front that supported keying like the Ten-Tec does I would just make a jumper for it. I really do not like putting a lot of holes in a radio.

In fact I would rather undo the CW leads internally and reroute them to key the radio in other modes and just use the acc plug over drilling holes. I have never seen a radio that looked better with added wholes and switches externally. Just like I have never seen a car whose appearance or functioning has been improved by the addition of a bumper sticker!

 

[Captain Kilowatt]

CKW I need to get another acc plug to do it. My factory plug is configured to allow the internal speaker to work. While the molded piece has the molded locations in it for other pin-outs it does not have the pins. Since I do not keep a kit like a Packard Connector Kit for replacing terminals and the like I need to order an acc plug first. They tend to run $14.99 a piece and if it is not going to work I just a soon not waste $14 on a connector that I will only need under one condition.

Temporarily unplug the acc. plug from the socket and jumper pins 8 and 9 which is where the key should be connected with a short piece of small wire. This way you can access the pins even if the plug does not have the pins in it and you will be able to see if it TX's in modes other than CW when the key contacts are closed. You probably don't even have to remove the plug and can insert the wire thru the empty pin holes. This probably better as it reduces the risk of shorting out the wrong pins. That's a simple work-around the no pins in the plug issue and will tell you if it is worth it to get another plug or set of pins to insert into the existing plug.