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Sorry psycho, I have to disagree, not going to get into a pissing contest, but I have seen at least 4 different versions, duplicates of duplicates maybe... who knows, but they all looked like they came out of the same garage.

Not to start confusion here but due to circuit design in the rig, I would go with the 2290 pair. The reason is matching the input and output impedance as well as in circuit gain as well as idle current. The 454 would work with some circuit changes but would not just do a drop in replacement in...

ground ground and more ground. When you think you have enough, take a break, realize you don't and do some more. Sure.. "ground" isn't the right term but for all intensive purposes let's use it because that is what everyone is familiar with. Use flat braid from some old coax or buy some and bond...

Hey Jon..good info. I could see someone either trying to adjust (read: misadjust) it on AM or SSB with the mic up picking up noise in the background.

The bottom line is that it is sad and unfortunate. An 8 year old boy got killed in the mess who is too young to understand all of the agendas that we at this point can only speculate caused this. Also because we don't know yet who did this, we, in my opinion need to find out, and do it the right...

I certainly could have written a novel on it but figured I would save the people reading the thread agony and instead find a way to market a 2sc2999 as the best upgrade for a cb receiver with already too much gain in the front end.

Assuming I am reading the post correctly..these amplifiers have a few issues. The input swr on them is pretty high on a lot of the "editions" of these amps. The input section was changed several times and so was the swamping part of that circuit. It can be fixed but requires a rework. Also these...

I have one I'll be playing with as soon as I have time. In the middle of other projects at the moment but the clarifer is easy..remove the 8v source from tx... remove the rx switched source and tie it to 8v constant. To play with the programming we're going to have to do a data dump most likely...

Northern35s, I have to agree and say you're right on the money.

Staybolt.. just saw your post... yes part of it is encouraging people..the other part is to separate the BS from the typical "cb" tech nonsense that floats around. In a way it's helping out you fellow radio operator / tinkerer.. if they still want to do it against all advice..hey have fun...but...

I agree with 9C1 all the way. All that work for something trivial at best..and you said the reason why is because you are more familiar with modding the bipolar chassis. What do you mean by mod? If it is typical "internet mods" which seems to be the way this is going due to the fact that you are...

You can pretty much mod any radio in the CB world by simply checking the filter bandwidths, and also adding value to the coupling capacitors throughout the audio chain and using some tantalum and higher quality capacitors replacing the electrolytics that often "pinch" the AF response. With an RF...

Yep. I second that. They are a pretty good radio once you get them set up and ready to go.

Ever see a frequency converter or a converter that connected to an IF stage? It would work my mixing which would add or take away from the frequency that you would want to receive. My guess is the RX amp is either oscillating at some frequency and doing this or is creating a spur that is...

A few comments... there is no really "best" antenna for DX work.. it all depends... if the person you are trying to reach is using horizontal polarization, and you're vertical, you will have cross polarization losses, and vice versa. Next, the A99 and Imax aren't exactly known for being...

He won't be. That's not how the amp is designed. The input circuit losses plus built in attenuation takes care of that.

Turn it on...push the ssb button which will swamp down the input a little and talk.

With a few "mods" it could be kinda cool..any delay when keying the mic to when the transmitter is keyed? Also any idea on what modulation technique it uses back and forth as well as the frequency? That would be interesting to find out and see if that in terms of analog or digital bandwidth...

Good job on getting it fixed. It's always good when I hear of someone giving it a "shot".

Oh..what the heck...let's see it.