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Hello, The other day I got to thinking the SSB delay times were pretty bad on my Palomar Skipper and my Magnum 2000. I still struggle to read schematics or even understand how stuff works, but used a multimeter to see what other capacitor was inline with the capacitor off the SSB switch. It...

Hello, The two amps came in today about half hour ago, and to be sure one of the amps wasnt too rusted inside, I had a peek inside, and by the looks of it, maybe it was fed with a bit too much power? Some of the resistors near the power level selector have been crisped up pretty well. I was...

Just ran into the pictures of when I had my Cobra 150 amp opened up sometime either last year or the year before... But Though the board read A1, Is the circuitry there for it to be a true Class AB1?

Hello, The deal with the Messenger 250 never worked out, so back at looking for an amplifier. I was eyeballing the Texas Star amps, but most go for a pretty penny. I got confused on various models that had the SSB button up front vs the Delay button, but then something about the ones with the...

Hello, I finally brought out the good ol Slant Face Roadtalker SSB radio. I honestly forgot when i did the clarifier mod to it. (Must have been a few years ago.). I did open it back up and seen that I already moved the wires and soldered them to the places they needed to go. ***Purple wire...

I thought I had done the clarifier unlock the other year on the Uniden 980 SSB, but I must be thinking of some other radio I had. I did follow the youtube video on how to go about it, but I skipped the step on the diode to try and give the radio more slide. I left that part alone. This the...

I did get myself one of them cheap testers off eBay. Was going through some transistors to try and match some sets of 4. After looking here, it says that turn-on voltage or "Vth" is the value you want to match. My question is, what if one transistor is 1.74v and the next transistor tests...

Hello, Its been awhile since I messed with this amp. I did my best to add SSB Biasing, and thats when it took a dive and burned up on me. (The two resistors next to eachother were to make up for the burned up resistor I didn't have), and it still cooks the resistor when you transmit. Basically...

Hello, Lately been thinking about picking up a good 10 meter amp. Got an older Realistic HTX-100 id like to use with it. I am just not familiar with which amps that one could still buy good/used that have proper SSB biasing. Cobra XL 350 is one that comes to mind, but isn't that amp based...

Hello, I am having some difficulty finding the ohms off this resistor. The colors dont match up on any of the calculators online. Any help on this would be appreciated. It does read half an ohm on a multi meter. Thats all I could find out about it.

Hello Fellow CBers! After all these years, I wish I took the time to actually hear my audio on the other end to be sure I was even happy with it. As of recent, I learned that my SSB audio just sounds overall bad on the RM Italy 203P. Best described as crunchy on the peaks. Which set me to try...

Hello all, I will get to making another post about my quick trip to Nevada, but for this moment, I really need some help on a Cobra 148 GTL clarifier unlock. I did follow the steps on the post from our very own Nomad, but when I do that, the TX/RX is so far off about a couple channels it...

Hello, This isn't quite a step-by-step on how to go about installing the LED itself, but just to show some of the pictures along the way when I replaced the LED in my Cobra 146 GTL. I used a computer chip socket and sized-trimmed it down to accommodate the area. This way if I ever decide to...

Been wondering what is the cause of the headaches. I have caught onto the fact that when I use either of the 3 radios I listed on the title of the thread, the audio becomes really bad sounding. TRC-449 or my Cobra 138 XLR, the audio sounds fantastic without the amp, but the moment you turn on...

Hello fellow CBers! Making sure if I got this right. The Midland 13-893 is essentially a Cobra 138 23 Channel SSB radio. That being said, according to this page, one would need a 8.549 MHz crystal to obtain Channel 35, 36, 37, and 38. 138,139, Midland 13-893, 13-895 Crystal Mixing According to...

Hello, I noticed that some of my TRC-465 radios have the same receive audio quality. Stations all sound more treble/higher tone than compared to my Cobra 146 GTL and the Uniden 122. The Uniden 122 sounds great and isnt as high tone on the receive and stations have more lower end audio. The...

Hello, The President AR144 I got in a couple weeks ago seemed to be doing ok, but I realized that something wasnt right. Sure enough, the radio is refusing to do more than 5 watts, maybe 6ish watts no matter what mode. AM and SSB the radio wont go passed that. Driver and final Bias were set to...

Hello, I have a 21 XLR I was wanting to try out the swing mod, but I am struggling to make sense of the instructions that I found on an old forum post. This is it: I don't have my 29 XLR radios here with me, but figured the 21 XLR can also be done. As far as cutting the trace, Is this the...

Short video of the conditions on 37 LSB. Did get to talk to WR1217 on 37 LSB and 66 Blue Grass on 32 AM. Mother Nature was nice tonight.

Sears Roadtalker 40 CM-4700S 934.38260700 Clarifier Unlock Here is a quick guide on how to unlock the Sears Roadtalker 40 CM-4700S 934.38260700 clarifier. Pictures help so I crudly used Microsoft Paint to outline the areas of interest. Hope this helps others out there. I added to the...