Anytone at-6666 v3

[Squints]

Who knows man, it's like everything else for the last year or so.... There's a lot we just don't know....

But check this out. Old news but interesting nonetheless
https://simonthewizard.com/2019/04/08/new-detachable-front-ssb-radio/

View attachment 43243

I been looking for this detachable face radio to hit the market somewhere and so far out of all the online retailers I could find there's no mention of it anywhere

 

[Squints]

Wanted to compliment you on your thinking about how to properly re-set a radio - may not be perfect, but if all else is equal (parts not missing or changed aside from the trimming of the pots) you should be ok.

Sorry to know that you have to purchase an original and use it to help re-align your Second Hand radio - don't worry. With Radios and their complexity these days, if you can just get the thing to work like the original one next to it - is a feat in itself...The lack of documentation from "overseas" has made alignments and repairs of these radios' difficult for even the experienced techs.

You asked about Finals - they did away with Bi-polar and are now using- LD-MOS Linear Device - MOS - FET designs - making them more like their Bipolar counterparts in power curve but less ohmic losses incurred thru their junctions - for they did away with the "direct PN" junction interaction that makes the Bi-polar a current muncher, with the Voltage Driven "Field Proximity" effects taking over, as the way to switch these on or off - they do a pretty good job of being faithful in providing output from the original input signal.

In the newer radios - they are doing away with "bias pots" and going with pre-set values.

The only problem with that is the drop in replacements are going to have a different bias trigger voltage even in tenths of a volt...

- which can make big differences in how the radio with work​

• - staying "in stock operation (fine)"
  • Being - Good to go...
• - or go off on a tangent and either "latch up" until it blows up the replacement final...
• - or work more like a Kraco Emergency Channel 9 HELP radio from the late 80's - getting you nowhere...
  • (both bad)

So yes, the replacements may need to be exact to the number, you should not mix IRF520 and 13N10s' or something exotic - into whatever they are using - they need to be identical in numbering assignment to at least be triggered "properly" and exhibit the right power curve to stay stock and original tuning like you wanted.

So you need to operate the radio within it's original set parameters (your re-alignment using a another OEM one as a template can help immensely in this...) else if you blow a Final - you may have to replace not just the bad final - but the ENTIRE strip. Why? Because the "lots" purchased by the manufacturer have made them pre-set their radios bias' levels for that particular MOSFET design. While you - being in the field and needing a replacement asap - may be out of luck in getting the OEM back out of the radio unless you are willing to delve and dive into the quandary of BIAS proper settings and drive levels per stage to restore the radio back to OEM operation.

The AT-6666 runs the Mic it has wired up for it to enable features and is programmed for it - if you need a replacement mic for it - unless you are willing to lose a lot of features and can tolerate the audio audible differences the filtering the radio uses - it is set up specifically for their mics, not power mics.- remember that the connector pins need to go somewhere - so be aware that to even make it key up - you may need to take it to a shop unless you're comfortable with how the manual shows you what to wire to where and do it yourself...

Mics wire up to this radio just fine as long as one knows to only use 3 wires on any after market mic no matter what kind or brand or power mic or not they all work.
Modulation, Keysup, Ground, that's it.

 

[columbas]

Will the swing modification work for the 6666Pro ? I don't know if the 6666 v3 has the same board as the 6666Pro.. Any help would be very much appreciated.

 

[Eldorado828]

Will the swing modification work for the 6666Pro ? I don't know if the 6666 v3 has the same board as the 6666Pro.. Any help would be very much appreciated.

Completely different pcb and software. The only thing they share is the outer appearance.

 

[columbas]

If anyone comes up with the swing diode modification for the 6666pro I hope they share that information I lowered my dead key from factory that they had set for 20 watts when the power is turned up. That’s way too high a dead key. So I lowered the dead key to no more than 10 watts dead key . I probably should go lower than that probably 7 to 8 watts but when you do that it lowers the output on the high setting. All my other radios have the swing diode modification and they swing from 2 watt dead key to full power. They run a lot cooler and last longer.

 

[AudioShockwav]

If anyone comes up with the swing diode modification for the 6666pro I hope they share that information I lowered my dead key from factory that they had set for 20 watts when the power is turned up. That’s way too high a dead key. So I lowered the dead key to no more than 10 watts dead key . I probably should go lower than that probably 7 to 8 watts but when you do that it lowers the output on the high setting. All my other radios have the swing diode modification and they swing from 2 watt dead key to full power. They run a lot cooler and last longer.

Try sending @BlueBeam a direct message, it's possible that he has been doing some work on the chassis.

73
Jeff

 

[columbas]

Try sending @BlueBeam a direct message, it's possible that he has been doing some work on the chassis.

73
Jeff

Its funny what I did on an AI search I typed in a 6666pro swing diode mod and AI came up with the same mod for the 6666 that Tim had posted. I know it cant be right and this proves AI DOES NOT KNOW IT ALL LOL I figured I would let everyone know this so you could get a laugh because all I have been hearing lately how great AI is and how AI knows it all. GOD BLESS TO ALL AND A VERY HAPPY NEW YEAR. Ps thanks to all on here that helps this old man out with their experience and knowledge.

 

[TM86]

Its funny what I did on an AI search I typed in a 6666pro swing diode mod and AI came up with the same mod for the 6666 that Tim had posted. I know it cant be right and this proves AI DOES NOT KNOW IT ALL LOL I figured I would let everyone know this so you could get a laugh because all I have been hearing lately how great AI is and how AI knows it all. GOD BLESS TO ALL AND A VERY HAPPY NEW YEAR. Ps thanks to all on here that helps this old man out with their experience and knowledge.

AI doesn't know a damn thing. It can search and summarize really quickly, but if the data it pulls is wrong or bad then that's what you get. Unless, of course, it just makes shit up.

As a tool it can be useful, as long as you're familiar enough with the subject matter to spot where it goes off the rails.

 

[columbas]

I believe like you do about AI. I figure in the future if there is one that AI will end up being like in terminator. Turn against try to kill us turn against us all lol

 

[brandon7861]

Its funny what I did on an AI search I typed in a 6666pro swing diode mod and AI came up with the same mod for the 6666 that Tim had posted. I know it cant be right and this proves AI DOES NOT KNOW IT ALL LOL I figured I would let everyone know this so you could get a laugh because all I have been hearing lately how great AI is and how AI knows it all. GOD BLESS TO ALL AND A VERY HAPPY NEW YEAR. Ps thanks to all on here that helps this old man out with their experience and knowledge.

I think AI is going to fall flat on its face. What happens when people forget how to do real research and only depend on AI's access to the work that was already published in the past? That, combined with the monetization and paywall of more and more research papers (and the increase in bogus papers) and I predict it will eventually run out of useful info to consume and start learning from its own inaccurate advice that it gave people who then re-post it. I've had AI reference this forum a few times already. It's only a matter of time before the quality of information it consumes becomes degraded beyond usefulness. I could be wrong, but I just don't see how it is sustainable with the current learning model.