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Peel 'N Stick variable key for the Cobra 29 radios. No joke.

<insert “shutupandtakemymoney.jpg”>

How long is this line, I can’t see the front. This should sell good to the Cobra/Uniden chassis guys I know.
 
Hey Big Kahuna, thanks for the offer. Building the boards is just the start. Need to get them wired up to a control and packaged to ship.

Need another case of "round tuits".

It works in the Cobra 25 just fine.

73
I just got my bench back up if you want I can run full spectrum testing on this and will pay you for the board it will be fun as I'm putting together a Chrome 29 with internal 60 watt amp board this would fit right into the project and it will be sold on eBay and your board would be given honorable mention in my Post just and idea no problem if you don't want to just offering.

Oldtech.
 
I just got my bench back up if you want I can run full spectrum testing on this and will pay you for the board it will be fun as I'm putting together a Chrome 29 with internal 60 watt amp board this would fit right into the project and it will be sold on eBay and your board would be given honorable mention in my Post just and idea no problem if you don't want to just offering.

Oldtech.

This may help you.

http://www.cbtricks.com/radios/cobra/mods_&_info/index.htm

I don't solder the +12v to the coil. There's usually an empty hole behind the modulation pot that you can grab 12 volts from, it makes for a cleaner install. I don't think it makes a difference but I always used a tip41c instead of a tip120.

That 100 ohm resistor to ground on the control pot determines how low the carrier will go. Replace it with a small pot if you want to make it adjustable.
 
Progress on this toy must seem glacial, but we finally have most of them tested, finished and packed to ship.

Here's what the final version looks like.

c3SmZ7.jpg


cWkCva.jpg


The control wires look long, but that's so it can be routed piggyback onto the radio's existing wire harness, and zip-tied to it. There is a tempation to just run the control wires across the inside of the radio, directly from the module to the SWR Cal control. But the extra length doesn't affect performance, and there is no easy way to secure the wires running them directly across that side of the radio. Shorter wires are not an advantage if they vibrate loose from the normal stresses of a mobile environment.
It may be easier to remove the three wires from the radio's SWR Cal control, remove the new one from the white wires and hook them up to the factory control.

Or it may seem easier to dismount the factor SWR Cal control, tape it and secure it inside. The new control should fit the front panel and knob of all the 40-channel Cobra 29-type radios I have seen.

Just simplifies the whole proposition of making this toy work if we include a new control.

Don't know how many people will use it, or clip the wires, strip them and solder to the factory control.

For years now, my attitude about this has been to include a part if it makes the installation easier. A part is nearly always cheaper than the labor to help solve an installation problem down the line.

I'll sell a single quantity of it by First-Class mail for 35 bucks prepaid. By the time it gets to Ebay the price will be closer to 40.

Yeah that's kinda high. But so is my overhead.

Deduct 5 bucks per additional item for quantities of 2 or more. Costs roughly the same to ship two or more as it does to ship one.

It came about to save labor in my shop. If the labor it saves you isn't worth that much, they won't sell terribly well.

But hey, if everybody says "That's too much" and walks away they'll get used here in customer's radios.

PM me with the email addy that serves as your PayPal member ID if you're interested.

73
 
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I got two of these and finally got around to installing one in my Cobra 29LTD. The only thing I had done previously was turn the modulation up. I put the pot from the kit in place of the SWR pot and taped up the SWR pot and left it inside. The install was simple and straight forward with no issues. The little board really makes for a clean install. The low dead key was 1w so I didn't adjust the trimmer on the board. The modulation would swing to almost 15w from any dead key on my Autek meter.

I tried out some different mics while calling for a radio check and basically just listening to myself on my 148 GTL with headphones that I use for a station monitor. I tried the RK-56, Cobra High Gear power mic, Superstar DM-452, and the D104M-6B. I noticed that I could turn the D104 up higher than the others without sounding scratchy. Man that thing is loud! Then someone from Kentucky came back out of the pileup to me on my barefoot 29. (I am in Delaware) I know conditions were just right but I am still amazed.

Thanks again Nomad for an excellent product!
Chris
 
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I PM'd him the other day and he had some. I'm waiting to build up enough funds for a 29 project that I plan on doing and if he's got them then I'll be taking a couple myself. It's definitely worth it I think, makes for a super clean and convenient installation. It looks like a top shelf product!
 
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How does this work in the mosfets finals in 29s and such? I haven't had much luck with variables on those but hell I'm probably set up the fet wrong I've been using 1n4148 in the companion part spot with a 20k resistor to the 8 volt rail.
 

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