Galaxy N kit

[dss56]

Has anyone seen these kits before? Im trying to get directions for install in radios.
It says can install in a cobra 29. Kit has 4 wires thats all I know.
Shows many more radios. The board has no xtals on it so
wondering how this kit will work?

And comments appreciated

 

[NZ8N]

The "N Kits" I used to see were basically "A Kits" with varactors added to "slide" the crystals.

 

[dss56]

these kits show 2 ic chips no xtals and 1 cap. so just wondering how it would work on a cobra 29 when you have to inject a signal to the mixer stage. Expo 100 A kits

 

[NZ8N]

I saw that logic chip board info somewhere, I think in Secret CB, I'm looking now.

 

[dss56]

ok thanks fist i ever saw this and trying to analyze how it would work or the directions are wrong for this to work in a cobra 29 or any of the radios i showed the list on.
The person selling keeps avoiding sending me a picture of the install points on a cobra. So he says you cut 1 pll pin and put 1 wire on each side and thats it. Still wont send a picture but verbally said how its done

 

[999]

ok thanks fist i ever saw this and trying to analyze how it would work or the directions are wron for this to work in a cobra 29 or any of the radios i showed the list on.
The person selling keeps avoiding sending me a picture of the install points on a cobra. So he says you cut 1 pll pin and put 1 wire on each side and thats it. Still wont send a picture but verbally said how its done

It lists the 29 GTL, not the 29 LTD. They are different boards.

 

[NZ8N]

29GTL and 29LTD are different boards, but similar design, same PLL (uPD2816). GTL was the precursor to the LTD's.

 

[NZ8N]

Channel Board For Cobra 146GTL & Uniden PC-122XL

Channel Board For Cobra 146GTL & Uniden PC-122XL: Low-cost AM/SSB radios with gPD2824 PLL chip. Expansion kits available to increase coverage but may void FCC approval.

cbworldinformer.com

It looks like it hijacks the 5.12 MHz (10.240/2) output signal from the PLL Pin 10, runs it through some loopy logic chips, that add either 320kc to the signal. or 640kc to the signal.

A 7493 4-bit binary counter and a 7400 quad NAND gate.

 

[dss56]

29GTL and 29LTD are different boards, but similar design, same PLL (uPD2816). GTL was the precursor to the LTD's.

Yes I was thinking because the Expo100 A kits work in both the GTL and LTD

 

[NZ8N]

On the Cobra 29 (GTL/LTD etc...) you would pull C94. This comes from the 5.12 MHz output of the PLL, before it goes to the tripler coil L22.

 

[Switch Kit]

Those are really solid IC controlled channel boards , used to put those in PC 122 type radios . (as your list says) Where did you find those ? Never put one in a AM only radio. Good luck .